Ben is tasked with cleaning the Rust Bucket, but when he is tricked into letting the villainous and vile Fly Guys steal it, he must chase them down before they create an unstoppable maggot monster. When Ben interferes with malicious magician Hex’s quest for the earth-moving Titan Gloves at a swap meet, he switches bodies with Gwen forcing him to walk a mile in her shoes and vice versa!