Menu Icon
Tubi logo
Browse
Arrowhead Down Icon
Browse
Close Icon
Popular
Creatorverse
Featured
For Detroit, By Detroit
Leaving Soon
Most Liked
Most Popular
Most Popular Horror
New Releases
Recently Added
Recommended
Recommended TV
Staff Picks
Star Picks: Chase Hudson & Sara Waisglass
Top Searched
Trending Now
Tubi Originals
Tubi x Kickstarter: FilmStream Collective
Genres
Action
Adult Animation
Anime
Arthouse Films
Based on True Events
Classic TV & Movies
Comedy
Crime TV
Documentaries
Docuseries
Drama
Edgy Comedy
Family Series
Family Watch Party
Film Noir
Foreign Films
Foreign TV
Have a Little Faith
Heist Films
Home & Garden
Horror
Indie Movies
Italian Horror & Giallo
Killer Thrillers
LGBTQ+ Storytelling
Lifestyle
Martial Arts
Music & Concerts
Mystery
Myths & Legends
Real Talk
Reality TV
Romance
Sci-fi & Fantasy
Slashers
Spanish Language
Sports Stories
Spy Movies
Stand Up Comedy
Sword & Sorcery
Thrillers
Travel
True Crime
TV Comedies
TV Dramas
Westerns
Collections
Actors Turned Directors
Audio Description
Awards Season All-Stars
Based on a Book
Be Our Valentine
Black Leads Only
Black Storytelling
Black Storytelling By Tubi
Blast From Awards Past
British Crime TV
Campus Couples
Cancelled Too Soon
Cinema Speculation
Coming of Age
Corsets & Courtships
Cult Classics
Epic Sagas
Featuring K-Idols
For the Cinephiles
Franchise Fever
Gangster Movies
Indian Shows & Movies
K-Drama & Beyond
K-Romance
Long Weekend Lineup
Modern Classics
Movie Night
New-stalgia
Nostalgia TV
Only Free on Tubi
Plot Twists & Curveballs
Political Scandals & Controversy
Series Spotlight
She Got Game
Sundance Favorites
Tubi's Most Popular 2025
Weekly Watchlist
Kissing Is The Easy Part
Networks
A&E
Complex Networks
CONtv
Docurama
Dove Channel
DUST
FilmRise
FOX
FOX SOUL
FOX Sports
Full Moon Features
Hallmark
K-Content by CJ ENM
Lifetime
LOL! Network
Shout! Factory TV
So...Real
TMZ Presents
TV One
UNINTERRUPTED
Movies
TV Shows
Live TV
Español
Tubi Kids
Help Icon
Help Center
Terms of Use
Privacy Policy
Contact Support
Sign In
Register
Search Icon
Play Icon
Play S01:E01
Add to My List
Share
Diagnosis Unknown
2004 · 2 Seasons
TV-14
Documentary
·
Drama
·
Mystery
Diagnosis: Unknown: The extraordinary stories of doctors, patients and the fight to survive.
Starring:
Ryan LeTempt
Chelsea Stroud
Tyler Allen
Justin Dray
Anna Gilfeather
Al Chewning
Directed by:
Bertrand Morin
John Kavanaugh
David Haycox
Season 2
Arrowhead Down Icon
Season 1
Season 2
S02:E01
Loading
S02:E02
Loading
S02:E03
Loading
S02:E04
Loading
S02:E05
Loading
S02:E06
Loading
S02:E07
Loading
S02:E08
Loading
S02:E09
Loading
S02:E10
Loading
Chevron Circle Right Icon
Tubi logo
Slash
series
Facebook
Instagram
Twitter
LinkedIn
COMPANY
About Us
Careers
Contact
SUPPORT
Contact Support
Help Center
Supported Devices
Activate Your Device
Accessibility
Report IP Issues
PARTNERS
Advertise with Us
Partner with Us
GET THE APPS
iOS
Android
Roku
Amazon Fire
PRESS
Press Releases
Tubi in the News
LEGAL
Privacy Policy (Updated)
Terms of Use
Your Privacy Choices
Cookies
Copyright © 2026 Tubi, Inc.
Tubi is a registered trademark of Tubi, Inc.
All rights reserved.
Device ID: 8cd9a7eb-beee-4684-803b-59c4ba17ff02
Made with
Heart
in San Francisco