Bob and the kids help a down-on-his-luck restaurant owner while Linda and Teddy celebrate St. Patrick’s Day.

Stewie builds a DNA-altering machine that will allow him to remain smart forever, but the invention has the adverse effect and he instead transforms into what he should have always been - an actual baby.

Upheaval in Washington brings an investigation to Kabul.

Tammy must protect Rachel, a research-obsessed teenage girl, after her father is shot in their home, while the rest of the team searches for a motive.

When a man impersonating Lasalle attempts to free a young woman from jail, the team investigates both the imposter and the prisoner. Also, Pride's daughter pays him a surprise visit.

Jamie's militia arrive at Hillsborough to learn that Governor Tryon has proposed a solution.

Take a deeper look inside the episode Perpetual Adoration

Clare's relentless hunt for the leak in Barton pays off, while Cam wrestles with his conscience over the beaten detainee. Sofie uncovers an ambitious escape plan, and Mina tries to support her grief-stricken father.

Nia's roommate, Yvette, is attacked by a man targeting Dreamer because he doesn't like that Dreamer is transgender and wants her to quit being a superhero. Determined to protect her community from additional harm, Dreamer refuses to give into his threats and puts herself in the line of fire to stop him. Supergirl stands by Dreamer and enlists additional help from Brainy. Meanwhile, Alex, J'onn and Kelly attempt to rescue a man stuck inside a virtual reality escape room.

Jealous of Bart’s bond with Ned, Homer mentors Nelson in retaliation, but an act of heroism helps Homer to regain Bart’s respect.

With Negan's help, Alpha and the Whisperers attack Hilltop.

If you're stuck in a loop, try walking in a straight line.