Imelda Corcoran

The alien glyphs Coulson has been etching lead the team to several murder victims; lies and secrets come to a head.

Desmond goes in search of a woman who could be the key to stopping the island's erratic movements through time. Meanwhile, Locke uncovers the identity of the hostile forces that have been attacking the remaining islanders.

When a lead suspect in Grace's disappearance case is found murdered, Catherine's frustration intensifies. The team attempt to figure out who killed the suspect and if his death will lead them to Grace.