On her last day at Westside, Joan chooses an unlikely successor, crowns a Chief Resident and imparts some final wisdom to the next generation. Gina steps in to help TJ's patient, a foster child suffering from rheumatoid arthritis. Amy and Jake's tension intensifies while treating a pregnant teen caught between her divorced parents.
Tim, Tickle and Henry confront the rogue shiners who torched their stash house. Mike and Jerry make liquor from candy roaster squash. But when they fail to return Mark and Huck's copper still cap, it's the mountain men who deliver their just desserts.
When Dr. Tango is arrested for stealing human remains from a national park, Dr. Donald "Ducky" Mallard returns to assist the team in proving his innocence.
Wagner joins Morgan and the team on a hunt for the crew behind a series of heists ripping through elite private vaults - only to uncover a far more dangerous endgame: a looming cyberattack that could cripple Los Angeles' core infrastructure.
Martin is skeptical when Port Wenn welcomes an extremely friendly delegation from their sister city in Norway and Louisa visits a specialist who just happens to be Martin's ex. Also, Greg believes that he is pooping little men and Mark exhibits troubling symptoms that warrant an intervention.
Navy Week turns electric when a stolen squad car flips and reveals a sailor stabbed in the trunk; as D.C. spirals into chaos, the team chases a killer while carrying the weight of recent events.
The gang celebrates Alice's graduation, as Jimmy struggles with unresolved feelings. Liz and Derek differ on what their future should look like.
Amanda seeks help from Will and Faith after her gun is used in a self-defense shooting, and suspicion begins to mount around her; at a college job fair, Angie and Ormewood encounter a grad student claiming to have psychic visions.
Tonight on an all-new episode Ms. Rachel gets a reality check.
R.J. unravels the truth about a Little League coach whose family is being mysteriously targeted. Meanwhile, R.J.'s parole officer worries that he is pushing the boundaries of his conditional release.
As Helen grapples with the news of Dee's suicide, she finds herself trapped in a pressure cooker as Cressida makes a move to destroy Helen's reputation for good.
Scooby the Great Dane seeks a new recruit for the gang. The Davies family have a double date with a Labrador and a German Shepherd puppy. And is Pomeranian Fox about to get lucky?
Woo-seok and Seol-ah find a lead, but a painting raises her suspicion again. She prepares a final strike and enters the secret vault with Woo-seok.
Hugh Wallace, Amanda Bone and Siobhán Lam examine a refined family extension in Dublin, a lovingly restored Victorian manse in Donegal, and a modern dormer self-build in Kilkenny
Lisa manages to get pregnant again, trying to stay positive in the face of her fears. Dave overhears Amanda talking about her ex and wants to know more.