The SVU teams up with the joint-terrorism task force to prevent a planned mass casualty event in the city. The force must quickly identity the suspects and their motive before it's too late.
Paige receives a lesson on the family business from Philip and Elizabeth, but questions arise when an operation takes a negative turn; a mysterious package puts Oleg's life in jeopardy.
Philip and Elizabeth receive new information about Henry, as well as news about a past operation; Philip fears that there's something more going on with Stan than just falling in love.
Gabriel makes an announcement that shocks Elizabeth and Philip, and reveals details about Philip's past; Stan and Aderholt set a trap; Oleg and Ruslan ambush a suspect.