Episode number: 04
Original air date: February 4, 2009
Flashback: Kate Austen
Written by: Brian K. Vaughan & Melinda Hsu Taylor
Directed by: Stephen Williams
Plot: Kate discovers that someone knows the secret of Aaron's true parental lineage. Meanwhile, the dramatic shifts through time are placing the lives of the remaining Island survivors in extreme peril.
Guest starring: Guillaume Dabinpons as Frenchman #1, Susan Duerden as Carole Littleton, Melissa Farman as Young Frenchwoman, Tom Irwin as Dan Norton, Marc Menard as Frenchman #2, Stephanie Niznik as Dr. Evelyn Ariza
"The Variable"Link
"Follow the Leader"Link
"The Incident, Parts 1 & 2"Link
Posters: Gideon's Life
The Great Lost Rewatch