Cyndi Martino

Rossi and the team present one of the longest-tenured serial killer cases to college students, taking the class through a nearly 20-year chase for the murderer.

Grace ruins Will's weekly poker game, and Jack and Karen target a plastic surgery guinea pig.

Jeffries prompts the team to reopen the 1963 murder of an African-American teen, who made friends with his white peers despite his family being a target of racism.

Teddy proposes to Peggy and asks her to be discreet about the news. However, Maddie is hurt when she finds out about the engagement and turns to an unlikely friend for advice. Meanwhile, Rayna cancels the remainder of the tour.

Phoebe's bachelorette party features a rather unexpected surprise when the stripper shows up. Joey is on ""Pyramid."" Chandler and Ross flash back to 1987 to reflect on a pact they made when they were in college.