|First aired:||January 18, 2010|
|Written by:||Oliver Grigsby|
|Directed by:||Michael Nankin|
|Previous spoiler:||Close to You|
|Next spoiler:||The Art of Deception|
As Hiro's (Masi Oka) brain tumor gets worse, he unintentionally teleports two years in the past to meet his father. Claire (Hayden Panettiere) receives an unexpected visit from Sylar (Zachary Quinto) as she gets the shock of her life when she overhears the outcomes of Samuel's (Robert Knepper) grand plan. Samuel reveals his darker side as he tries to win back Vanessa (guest star Kate Vernon). Meanwhile, Angela (Cristine Rose) warns H.R.G (Jack Coleman) of a greater evil threatening the whole earth.
Oliver says the second description "sounds more like" his episode. It reads:
THE VERDICT OF AN UNEXPECTED TRIAL COULD MEAN THE END OF HIRO - GEORGE TAKEI, TAMLYN TOMITA, MADELINE ZIMA, DAWN OLIVIERI AND DAVID ANDERS GUEST STAR - Hiro's (Masi Oka) life hangs in the balance as his brain tumor worsens, prompting him to subconsciously deal with some of his past decisions. Meanwhile, Sylar (Zachary Quinto) pays Claire (Hayden Panettiere) an unexpected visit to get answers as to why he isn't quite himself. Elsewhere, Samuel's (Robert Knepper) plan to impress his long-lost love, Vanessa (guest star Kate Vernon), takes a terrifying turn. Jack Coleman, James Kyson Lee and Sendhil Ramamurthy also star. Lisa Lackey, Danielle Savre, Sally Champlin, Satomi Okuno and Jordon Dang also guest stars.
- 11/05 -- NEW! In an email, the title of the sixteenth hour (fifteenth chapter) is revealed.
-  A young Samuel is being cast for this episode.
- This will be a flashback episode detailing Samuel's past.
- The title refers to some kind of a challenge, which characters will have to pass or fail.
- This will show the tests being done to people with abilities at Coyote Sands whether they pass or fail.
- The episode might somehow involve a test Claire has to take at her college.
- This episode will be a flashback with young HRG and young Samuel.
- Hiro will try and save his dad from being killed by Adam Monroe.
- Hiro will be healed by his mother once again.
- Hiro will meet his father in the past after the moment he tried to convince past Hiro to return home, and tell him about his powers and the explosion.
- Gretchen will meet Sylar during his impromptu visit to Claire's dorm, much to the confusion of all involved.
- Hiro will try to change his past mistakes with more intensity, travelling more through time and making his tumor worse.
- Hiro will die in this episode, turning Ando into a badass while trying to figure out how to stop his friend's death.