Andrews catches up to the Williamses; Terry and Crewes must trust Francie.

Andrews and Crewes close in on Chicago, as to Gina and Terry.

Harlan and Gina separate; Andrews learns of their rendezvous.

Andrews takes control of the investigation; Terry looks for a hideout for the Williamses.

Sensing Harlan's value to the government, Terry urges him and Gina to flee.

Harlan's physical changes become apparent, which Andrews tries to keep quiet.

A science lab's elderly janitor is caught in an explosion and inexplicably begins getting younger, making him a target for a sinister agency.