WHO IS LAILA GALLISTON? MORE CLUES TO THE CONSPIRACY ARE REVEALED, ON ABC'S "ZERO HOUR"

"Chain" - White Vincent, wounded and in trouble, is still in hiding and holding Laila captive. Sensing his weakness and vulnerability, Laila convinces White Vincent to let her help him with his wounds, all the while looking for an opportunity to escape. Realizing he needs help to get the next clock, White Vincent enlists Hank, bartering Laila's release for his service. As Hank risks his life and dodges ominous warnings from the Shepherds, he comes to realize that people aren't always who they seem to be when shocking new information regarding his wife - and the death of Beck's husband -- comes to light, on "Zero Hour," SATURDAY, JUNE 15 (8:00-9:00 p.m., ET), on the ABC Television Network.

"Zero Hour" stars Anthony Edwards as Hank Galliston, Carmen Ejogo as Rebecca "Beck" Riley, Scott Michael Foster as Arron Martin, Addison Timlin as Rachel Lewis, with Jacinda Barrett as Laila Galliston and Michael Nyqvist as White Vincent.

Guest starring are Dylan Baker as FBI Chief Terrance Fisk, Grace Gummer as FBI Agent Paige Willis, Ken Leung as Father Reggie, Dominik Tiefenthaler as Adam the groundsman, Andy Powers as W. Craig, Andrew Polk as Thomas Klein and George Bartenieff as Old Man Kipske.

"Chain" was written by M. Scott Veach, Paul T. Scheuring and Tom Spezialy and directed by Steven DePaul.

"Zero Hour" is broadcast in 720 Progressive (720P), ABC's Selected HD Format, with 5.1 channel surround sound. This program carries a TV-PG,V parental guideline.