Alex takes Lucy to the Bermuda Triangle to reunite her with her lost love Danny. But when she is about to flash herself back to her apartment, Danny tells her that magic doesn't work in the Bermda Triangle because of the magnetic current. Mason then finds out from Harper that Alex has gone to the Bermuda Triangle and went to enlist the help of Justin. Justin then gives him special Bermuda Shorts that gets rid of the magnetic current that interferes with their magic and teleports him to the island where Alex was. Upon finding her, he gives Alex the shorts and they telepport back (it is not shown as to where they ended up).
The Bermuda Shorts have only appeared in the episode "Ghost Roommate".