Ashli Haynes

Dinner gets awkward for Jen and Matt when they find themselves alone without Greg and Colleen. Also, Lark accidentally locks out Greg and Jen from the house, prompting Greg to install a complicated home automation system; Heather and Tim try to sneak wine into an ice skating show to get out of paying at the venue; and John and Joan agree to an impromptu wedding after Colleen mentions that she’s an ordained minister.

Kate and Toby go to Las Vegas for their bachelor/bachelorette parties. Meanwhile, Jack and Rebecca celebrate their anniversary.

When a mailman is killed, the team must work with a brash, eccentric postal inspector, who believes the mailman's murder is part of a larger conspiracy. Maura continues to struggle with the ramifications of her injury, and Angela intervenes when she discovers Korsak has gotten Kiki (recurring guest star CHRISTINA CHANG) a terrible birthday present.