Last Aired S01E20 on Mar 25, 2005
20 episodes available of 20 aired
6.5 (4 Ratings)
60 Min

Medical Investigation was an American medical drama television series that began September 9, 2004, on NBC. It ran for 20 one-hour episodes before being cancelled in 2005. The series was co-produced by Paramount Network Television and NBC Universal Television Studio The former controls North American distribution rights, while the latter distributes outside North America. The series featured the cases of an elite team of medical experts of the National Institutes of Health who investigate unusual public-health crises, such as sudden outbreaks of serious and mysterious diseases. In actuality, medical investigative duties in the United States are normally the responsibility of the Centers for Disease Control and Prevention and local health departments, while the NIH is primarily a disease-research and -theory organization. The series existed in the same television universe as Third Watch and, by extension ER. A special two-part crossover event aired on February 18, 2005, establishing the television-universe connection by featuring the Third Watch and Medical Investigation teams working together in MI's Episode 17: "Half Life" and Third Watch's Episode 16 of the sixth season: "In the Family Way". The story was about a series of Marburg virus cases in New York.


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All Medical Investigation (2004) Episodes

Medical Investigation Seasons

  1. Watch Medical Investigation Season 1 S01
    20 of 20 Ep. Available 2004

Medical Investigation Episodes

  1. 20 Watch Medical Investigation S01E20 online - Mission La Roca (2)
    Available Aired on Mar 25, 2005
  2. 19
    Available Aired on Mar 18, 2005
  3. 18
    Available Aired on Feb 25, 2005
  4. 17
    Available Aired on Feb 18, 2005
  5. 16
    Available Aired on Feb 11, 2005
  6. 15
    Available Aired on Feb 04, 2005
  7. 14
    Available Aired on Jan 28, 2005
  8. 13
    Available Aired on Jan 14, 2005
  9. 12
    Available Aired on Jan 07, 2005
  10. 11
    Available Aired on Dec 03, 2004
  11. 10
    Available Aired on Nov 19, 2004
  12. 9
    Available Aired on Nov 12, 2004
  13. 8
    Available Aired on Nov 05, 2004
  14. 7
    Available Aired on Oct 29, 2004
  15. 6
    Available Aired on Oct 15, 2004
  16. 5
    Available Aired on Oct 01, 2004
  17. 4
    Available Aired on Sep 24, 2004
  18. 3
    Available Aired on Sep 17, 2004
  19. 2
    Available Aired on Sep 10, 2004
  20. 1
    Available Aired on Sep 09, 2004

Watch Medical Investigation season 1 episode 20 (S01E20)

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The team figures out that they are dealing with bacterial meningitis, and the only thing that makes their day worse is a corrupt politician who steals the medicine and holds it at ransom. Elsewhere, the people at Mission La Roca (Miles, Connor, Powell, Nestor, Juan, Kris, and Baracas) make it out before the church collapses, and take the sick ones off to the hospital for treatment.

Watch Medical Investigation season 1 episode 19 (S01E19)

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Connor and Powell must travel to a small Mexican town after an earthquake strikes, trapping Natalie, Eva, and Miles. Only when they go after Miles, who was trapped in the church Mission La Roca, they are captured by insurgents.

Watch Medical Investigation season 1 episode 18 (S01E18)

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Connor suspects terrorism when two congressmen and an officer fall prey to an unknown disease. However, when the leader of a prostitution ring becomes ill with the same symptoms, an unknown STD becomes the suspected agent. Now it is a race against the clock, and their pesky boss, Dr. Ewing, to find a call girl who may be the source of this deadly outbreak.

Watch Medical Investigation season 1 episode 17 (S01E17)

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The NIH team teams up with the officers of the 55th Precinct in New York City to try to figure out what is the source of an outbreak of Marburg, a deadly disease with no known cure. They also try to locate patient zero, a murder suspect on the run, who is helping to spread the disease throughout New York City.

Watch Medical Investigation season 1 episode 16 (S01E16)

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Split cases find Connor, Natalie, and Powell in New York City trying to cure victims who are presenting paralysis as a result of the September 11 Terrorist Attacks, and Miles and Eva down south trying to figure out what is causing the pregnant wives of military men to miscarry.

Watch Medical Investigation season 1 episode 15 (S01E15)

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The team travels to Baltimore to help stop an outbreak of the plague, a disease that wiped out much of Europe in the middle ages. But they uncover a string of dirty cops, who were trying to cover up a murder, in the process.

Watch Medical Investigation season 1 episode 14 (S01E14)

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The team is trapped in a snowstorm in the arctic while trying to figure what is causing pneumonia in patients that also causes psychosis. To make matters worse, one of their own goes down with the same illness.

Watch Medical Investigation season 1 episode 13 (S01E13)

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A smallpox outbreak sends the NIH team to Montana. However, is this once thought to have been eradicated disease caused by terrorism, or is it natural?

Watch Medical Investigation season 1 episode 12 (S01E12)

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A surfer and volleyball player from a seaside town catch a mysterious disease. Dr. Connor and his staff begin suspecting that nearby seals played a part in this illness, however are the other forces at play?

Watch Medical Investigation season 1 episode 11 (S01E11)

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An ""Angel of Death"" runs amok in a hospital, spreading a deadly flesh eating virus, which kills patients. Now it is up to the NIH to stop this lunatic, who has a past that they should not be proud of.

Watch Medical Investigation season 1 episode 10 (S01E10)

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When the adult film stars in Los Angeles start falling prey to a devastating disease, the hospital summons the assistance of the NIH team. At first, being as they are adult film stars, Connor suspects an STD. However, when the perfect housewife also falls prey to the same illness, a new link is needed to be found. After some testing, it is discovered that all of the women used the same plastic surgeon for breast implants. The team contacts the doctor, who is reluctant to help, but finally convince him to abide. The team tests the implants, but finds nothing. After some tough thinking, the team realizes that some fish and some water hold the answer.

Watch Medical Investigation season 1 episode 9 (S01E09)

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After the victims of a car accident are diagnosed with a deadly disease, which caused the accident, a small Maryland town requests the assistance of the NIH team. The only problem is there is only one living victim, as the other nine victims had perished, and in order to save her life, and find the cure, she requires a bone marrow transplant. This little girls runs out of luck as her father has died from the same disease and her mother died from a drug overdose. However, Natalie does some DNA tests to see if the bone marrow can still be used, and discovers the girl was adopted. Eva then then goes and searches for the girl's birth mother, who wants no part in the girl's life. After some tough convincing, Eva gets the mother to donate, and saves the girls life. Now, in order to find the cause for the epidemic, the team must look to some tainted seafood for the answer.

Watch Medical Investigation season 1 episode 8 (S01E08)

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The team flies to a small Virgina town to figure out why people are dying from a deadly strain of the flu.

Watch Medical Investigation season 1 episode 7 (S01E07)

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The team flies to Philadelphia to figure out if Anthrax is showing up as a result of terrorism or not.

Watch Medical Investigation season 1 episode 6 (S01E06)

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When the jocks of a Midwestern College start falling prey to a crippling disease, the NIH team is summoned to investigate. At first, the suspected agent is Multiple Sclerosis. However, when the coach, as well as some sorority pledges fall ill with similar symptoms, the NIH team is baffled. As it turns out, the girls are not suffering from the same illness. The common links are discovered, and for the jocks, an athletic banquet holds the answer, and for the pledges, a tube of foreign lipstick holds the answer.

Watch Medical Investigation season 1 episode 5 (S01E05)

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After years of watching young children fall prey to a crippling muscular ailment, a small community summons the NIH team to hopefully find a cure. At first, Connor suspects a local chemical plant as being the cause of this devestating. However, a common link is discovered, and the DNA of the children holds an important clue.

Watch Medical Investigation season 1 episode 4 (S01E04)

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When the vacationers in a Bahama resort start falling ill, the NIH team is called in to discover the cause of this devastating illness. The only problem is that this disease is not effecting the children. However, when the first child falls ill with the same symptoms, the common link is found, and an illegal drug holds a clue.

Watch Medical Investigation season 1 episode 3 (S01E03)

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When a couple of Iraqi War vets start showing signs of Gulf War Syndrome, the NIH team is called to investigate. However, when a group of Nursing-home residents fall ill with the same symptoms, the NIH team is left baffled. However, they are missing the bigger picture, where a lector holds an important clue.

Watch Medical Investigation season 1 episode 2 (S01E02)

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A group of four teenage girls are suspected of having an STD when they are hospitalized for seizures. However, the NIH team must uncover the true cause of the seizures, and a pair of pants holds a clue.

Watch Medical Investigation season 1 episode 1 (S01E01)

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When people in New York City start turning the color blue, the NIH team is called upon to help cure this outbreak. When searching for the cause, a diner holds an important clue.

How to watch Medical Investigation online without downloading

  1. Watch Medical Investigation online only at TVZion for free. No download or registration required.
  2. Medical Investigation first started airing on Sep 09, 2004 and we have updated 20 out of 20 aired episodes and we will add more as they air.
  3. Please note that new Medical Investigation episodes can take upto 2 days to be updated after their first airing date.
  4. To watch Medical Investigation episodes, select the season and episodes from the list above and the proper episode information will appear on the right side (or below in case of mobile devices), click on the watch now button below the episode info to go to episode page, and watch the respective episode without downloading.

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