Episode 1
Pilot
A genetics professor in India discovers that there are people with superpowers, as people realize their extraordinary strengths.
Episode 3
One Giant Leap Claires social life suffers when her romance with a quarterback takes a tragic turn; Niki winds up in the middle of the desert when she follows instructions from a mysterious source.
Episode 4
Collision Suresh locates one of his fathers genetically advanced supermen; Hiro turns time to his advantage in Las Vegas; a tragedy at a bonfire puts Claires healing abilities to the ultimate test.
Episode 5
Hiros The police arrive on Nikis doorstep, looking for her fugitive husband; Claire confesses to her father; Hiro and his friend get jumped.
Episode 6
Better Halves A Las Vegas high-roller offers Hiro and his friend a deal they cannot refuse; Claire meets with her biological parents; Isaac receives another confusing phone call.
Episode 7
Nothing to Hide Distraught Niki reveals her recent personal struggles to a friend; Matt assists Audreys investigation into a bizarre murder; Hiro questions his heroism; Nathan and his wife strategize to win the congressional election.
Episode 8
Seven Minutes to Midnight Suresh questions his future when dreams of the past trouble him; Hiro and Ando meet someone interesting in a diner; Peter asks Nathan to help him find a key to the future.
Episode 9
Homecoming Claires homecoming celebration becomes a frightening night for many; Hiro travels back in time to right a wrong; Suresh continues to experience strange dreams while in India.
Episode 10
Six Months Ago Mohinders father (Erick Avari) arrives in New York to begin his search for individuals with extraordinary abilities; Hiro tries to change the future for someone important.
Episode 11
Fallout
The tragic events in Texas have serious repercussions for many of the heroes, their families and friends; shocking details about the moments leading up to Isaacs predicted New York nuclear bombing.
Episode 12
Godsend A new hero (Christopher Eccleston) arrives on the scene; Nathan and Simone try to help Peter, who has been comatose for two weeks; Hiro goes on a quest to find the samurai sword seen in Isaac\'s painting. Also, Horn-Rimmed Glasses concentrates his efforts on taking care of Sylar (Zachary Quinto); Claire struggles to come to terms with the fact that she has been living a lie; Niki is held and questioned by police.
Episode 13
The Fix Hiros search takes a turn when his father (George Takei) appears; cleaned-up Isaac dedicates himself to stopping New Yorks destruction; an invisible man with a mysterious past may have something to teach a would-be hero.
Episode 14
Distractions Hiro struggles to make his father (George Takei) understand his new calling; Claude (Christopher Eccleston) tries to teach Peter to control his abilities; Claire goes to a Texas trailer park in search of her birth mother (Jessalyn Gilsig).
Password: ubermatt
Episode 15
Run! Claires adoptive mother faces a crisis as the truth about her biological father comes out; Matt takes a job as a bodyguard for a crooked lawyer; Hiro and Ando return to Las Vegas to find the sword.
Episode 16
Unexpected Peter learns that someone close to him may have betrayed him and Claude (Christopher Eccleston); the radioactive man (Matthew John Armstrong) and Hana Gitelman (Stana Katic) drop in on Matt.
Episode 17
Company Man Matt and Ted Sprague (Matthew John Armstrong) take H.R.G. and his family hostage in their search for answers, which leads to an explosive showdown.
Episode 18
Parasite With the election looming, Nathan has a disturbing meeting with Linderman; Hiros bid to steal the sword steers him in a new direction; Suresh makes a breakthrough on the list.
Episode 19
Episode 20
String theory
Episode 21
The Hard Part Now knowing what's at stake if they fail in their mission, Hiro and Ando's determination to save the world is put to the test. Committed to the path, Nathan takes some surprising steps to guarantee his election. Jessica and D.L. begin to learn how their family fits into Linderman's plans. Thompson brings someone new into his company's fold. With more and more blood on his hands, Sylar visits his mom.
Episode 22
Landslide Poised to become a member of Congress and maybe more, Nathan considers the cost to those he loves, along with his mother's advice and Linderman's prophecy. As he prepares to face Sylar to the death, Hiro learns of his lineage from his father. While various "heroes" fatefully arrive in New York City, Peter and Ted attempt to leave the city before the foretold explosion. H.R.G. and Matt learn the surprising truth behind the tracking system used on people with special abilities.
Episode 23
How to Stop an Exploding Man With Isaac's horrible predictions all unfolding before them, the everyday people with extraordinary abilities face moments of pain and peril in Kirby Plaza with unflinching heroism, as "Heroes" first volume comes to a close -- and the next surprisingly begins.