Nana's getting married - news that has Sandy, Seth and Ryan off to Miami. Back at the OC, Zach wows Summer with a home-cooked meal, Kirsten sorts out her Carter feelings and Trey's feelings for Marissa take a terrifying turn.

Al Scheckwitz, Allen Reed, Amie Dellavalle, Anthony John Denison, Bret Harrison, Brian F. Durkin, Burt Greenburg, Jaime King, Jason Bartley, Krista Kalmus, Linda Lavin, Logan Marshall-Green, Sid Raymond, T.I., Todd Sherry