When a young man in a cult claims to be hearing the word of God, Pierce must determine if its actually the word of God or a life-threatening neurological condition. Pierce and Moretti must also figure out if his murder is linked to his drug past or his new life with an organization that may be scamming people out of their life savings. Roger Bart guest-stars as Ethan Kendrick, a high-powered IRS agent looking into the finances of the organization. Meanwhile, the university gives Pierce an award for his research.

Michael learns a secret that Cassandra kept from him, so he and Nikita travel to Moscow to confront her. Meanwhile, Alex makes one last attempt to find her mother by sending out a coded message through a TV interview.

Lucifer drives Sam to the breaking point and Sam ends up in a mental hospital. Desperate to save his brother, Dean calls every hunter he knows for help. one of the hunters gives him the name of a healer who turns out to have a very familiar face.

Following the recent shocking revelations and emotional events, Peter weighs his options as the Fringe team investigates a killer targeting love.

Alex returns from a bachelor party and makes a drunken marriage proposal to Whitney. She laughs it off, but when she finds out that he broke her one rule about strip clubs пїЅ no going into the Champagne room пїЅ she sets out to find Britnee, the dancer who lured him in. The confrontation takes a turn and Alex once again takes a knee. Meanwhile, Lily and Neal continue to figure out their new friendship and Mark begins to realize that he has feelings for Roxanne.

Andre (guest star Malcolm Jamal Warner) proposes that he and Shirley remarry and a wedding date is set. Britta and Annie get busy planning the wedding and Jeff prepares to give a wedding speech пїЅ while Troy and Abed get ready to be пїЅnormalпїЅ for the occasion. Meanwhile, Pierce and Shirley pitch a sandwich shop idea to Dean Pelton for the Greendale cafeteria.

Liz gets her Irish up on St. PatrickпїЅs Day when crude and rude ex-boyfriend Dennis unexpectedly arrives and complicates her relationship with Criss. Meanwhile, Jack battles the writers in a strategic board game; and Hazel tries to keep Tracy and Jenna in line.

Rob asks Hector to teach him Spanish пїЅ in secret пїЅ so he can understand what MaggieпїЅs family is saying about him. Meanwhile, Fernando pretends to be on a diet for Rosa.

Gary and Joel want to surround themselves with positive influences so they become managers on the high school baseball team.