Nate, Brenda and Maya attend a memorial service for Lisa in Idaho. Claire comes to final blows with Edie at Jimmy's party, and Ruth reconciles with George.
David's ex-fiancee asks him to arrange her father's funeral. Nate has a psychic rendezvous, and Ruth discovers the identity of George's stalker.
While investigating a congressman who is falsely accused of soliciting underage girls, the SVU uncovers a sex trafficking ring.
Firehouse 51 responds to a suspicious call from a neighbouring firehouse, so Severide and Cruz investigate. Also, the team welcome a new firefighter.
Davis concocts a remedy for the post-Mardi Gras blues; Antoine becomes an unexpected benefactor and Colson warns Albert to avoid trouble on St. Joseph's night.