01/16 - Picking up two weeks after recent events, Nathan's determination to save a comatose Peter forces him to turn to Simone (Tawny Cypress) for help. Isaac's puzzling "Hiro vs. T-Rex" painting inspires Hiro and Ando (guest star James Kyson Lee) to search for the pictured samurai sword. Jessica struggles against Niki's decision to turn herself into police. With his associate Eden dead and Matt on his heels, H.R.G. tries to focus on his orders regarding Sylar (guest star Zachary Quinto). After being offered a choice by the Haitian (guest star Jimmy Jean-Louis), Claire struggles with changes her decision has wrought. Taking up his father's quest, Suresh attempts to share information about who is "on the list" of people with special abilities and the threats to their lives. Meanwhile, a new hero (guest star Christopher Eccleston) makes a shocking debut. Leonard Roberts and Noah Gray-Cabey also star. Thomas Dekker, Clea DuVall, Lisa Lackey and Cristine Rose guest star.
Source: NBC
01/16 - A female character is written off (possibly forever). Hiro has a run-in with a T-Rex. A major scene from the pilot gets reenacted. An estranged couple patches things up. A hero's powers begin to diminish. There's an unexpected (and pretty frakkin' hilarious) reunion between two heroes.
Source: The Ausiello Report