Zack becomes বন্ধু with a grumpy passenger and teaches him how to pull pranks on the other old people on the ship. Meanwhile, লন্ডন plans a trip into মহাকাশ and searches for the right friend to go with her.
The boys plan to celebrate their birthday with their dad, but a surprise visit from their mom disrupts the all-guys weekend. Worse, the twins fear their parents might stay on the ship for an extended visit.