Alias by Mark Posey

ALIAS

One family's life is changed beyond anything they could ever imagine.

A major foreign power has been funneling key intelligence personnel into the United States for nearly a year, hiding them as embassy and consulate staffers, students, and plain immigrants. In response, the FBI activates its Domestic Sleeper program.

Scattered across the country as architects, cab drivers, and other innocuous roles, failsafe agents in the Domestic Sleeper program are unaware of their status as dormant FBI agents until they're triggered by a post-hypnotic codeword. Their programming drives them to a pre-arranged checkpoint to receive the instructions necessary to combat a Credible Threat.

In this episode: After a harrowing trip to the hospital, Marie discovers Aaron's secret but has no idea what the implications will be until she is faced with an ominous revelation.

Credible Threat: Alias is...