NBC.com just released the official description of upcoming
episode 19: “.07%” and episode 20: “Five Years Gone”

Episode 1.19: “.07%”

Air Date: April 23, 2007

Written By: Chuck Kim
Guest Stars: Malcolm McDowell (Linderman), James Kyson Lee (Ando), Cristine Rose (Angela Petrelli), Missy Peregrym (Candice), Ian Gomez (Curator), Zachary Quinto (Sylar), Matthew John Armstrong (Ted Sprague), Eric Roberts (Thompson)

SERIAL KILLER SYLAR’S RAMPAGE CONTINUES — MALCOLM MCDOWELL AND ERIC ROBERTS GUEST STAR — After “helping” Suresh (Sendhil Ramamurthy) search for more people with special abilities, Sylar’s (guest star Zachary Quinto) rampage continues with two “heroes” being confronted by the stronger-powered serial killer. Nathan (Adrian Pasdar) must factor what he’s learned from Linderman (guest star Malcolm McDowell) into difficult decisions that will shape the future — for him, his family, New York City and the world. As Thompson (guest star Eric Roberts) uses every tool at his disposal to find Claire (Hayden Panettiere), Linderman drafts Jessica (Ali Larter) into his far-reaching plans. Meanwhile, Hiro’s (Golden Globe nominee Masi Oka) resolve to “save the world” strengthens in the face of a grim reality. Santiago Cabrera, Noah Gray-Cabey, Jack Coleman, Greg Grunberg, and Milo Ventimiglia also star. James Kyson Lee, Missy Peregrym and Cristine Rose also guest star.

This is the extended trailer of episode 19

And this is the official description of Heroes episode 20

Episode 1.20: “Five Years Gone”

Air Date: April 30, 2007
Written By: Joe Pokaski
Guest Stars: James Kyson Lee (Ando), Kellan Lutz (Andy), Jimmy Jean-Louis (The Haitian), Stana Katic (Hana Gitelman), Zachary Quinto (Sylar)

HAVING STOLEN THE SWORD AND TELEPORTED FIVE YEARS INTO THE FUTURE, HIRO AND ANDO BEAR WITNESS TO A GRIM, HARROWING FUTURE FOR THE “HEROES”– Thrown five years in the future, Hiro (Golden Globe nominee Masi Oka) and Ando (James Kyson Lee) discover that people with extraordinary abilities are not only widely known about — after the destruction of New York City and the deaths of millions — but are being registered, imprisoned, hunted and even killed as “terrorists.” As the President takes his first step towards a “final solution,” the pair get swept up in what could be the “Heroes” final battle and encounter a range of new and darkly familiar faces. If they survive the experience, can they still get back to the present and save the world? Santiago Cabrera, Jack Coleman, Noah Gray-Cabey, Greg Grunberg, Ali Larter, Hayden Panettiere, Adrian Pasdar, Sendhil Ramamurthy, Leonard Roberts and Milo Ventimiglia also star. Stana Katic, Jimmy Jean-Louis and Zachary Quinto guest star.