David Lim

When corpses are discovered in public places in Boston, a ride-sharing service may lead the team to the killer.

When Jordan's sister gets into trouble, Naomi tries to protect her reputation; Silver receives news from her doctor; Annie decides to do a book tour in Paris; when Adrianna performs after Fall Out Boy, the event ends in chaos.

While investigating the dark world of espionage at a mysterious CIA training facility, Alex becomes caught at the center of a conspiracy that threatens lives across the globe.

A heartbreaking death forces Emily to evaluate her quest for revenge.

Lydia and Owen teach the trainees how it's sometimes necessary to lie and cut off relationships; Alex feels distant from Ryan; Alex and company try to destroy the biological weapon.

Alex tries to get Owen to accept there's a traitor among them; the recruits work to get an asset with a death wish out of Germany; the terrorists use a new method to extract information from the hostages.