When Robin and Loretta's conflict escalates, Barney is caught in the middle. Meanwhile, Marshall and Daphne deal with a stowaway on their road trip, and Ted and Cassie try to enjoy a trip to a lighthouse.
Quest roles:
Lyndsy Fonseca(Daughter), David Henrie(Son), Frances Conroy(Loretta Stinson), Cristine Rose(Virginia Mosby), Harry Groener(Clint), Sherri Shepherd(Daphne), Roger Bart(Curtis), Robert Belushi(Linus), Anna Camp(Cassie)