Gregory Michael

When Barney and Quinn start living together, Barney's reluctance to throw out any of his old possessions makes the gang doubt his faith in the relationship. Ted, Marshall and Barney hold their triennial `trilogy time' event, at which they watch the `Star Wars' film trilogy and try to picture how their lives will have developed in another three years.

Overwhelmed with loneliness since Max left for his internship, Casey finds herself latching onto her ZBZ sister's social activities and ultimately interfering with Rusty's new blossoming romance with Jordan. To what lengths will Rusty go to put a stop to Casey's craziness? Meanwhile, after enduring a tough roommate situation for months, Calvin finally gets some relief when Evan finds him a new roommate - who happens to have an unexpected secret. And Evan and Cappie's ongoing rivalry heats up once more over a girl in the secret society led by Dean Bowman.

ZBZ tries to get back to number one whilst Lana tries to corrupt Rusty when she, Rusty and Cappie hang out together.

Casey and Cappie are finally back together. Elsewhere, Rusty and Dale's argument comes to a head and the ZBZ girls prepare for `Song Fest'.

Casey volunteers to assist in planning a ball to raise money to rebuild the Gamma Psi house.