12 Perfect Castaway

Peter, Quagmire, Cleveland and Joe go on a fishing trip, but their boat sinks when a storm breaks loose. They survive on a raft built out of Quagmire's sex dolls and set ashore on a desert island. Several months later, they are rescued by a passing cruise ship. Upon returning home, Peter finds that Lois has married Brian, thinking her husband was dead. While Lois is overjoyed when she learns Peter is alive, she is torn between her love for Peter and her commitment to Brian. Peter then has sex with Lois, restoring their love for each other. Brian eventually decides that it would be better for Lois to return to Peter as he understands her internal battle.