Murphy falls into a field of four-leaf clovers and picks one. As if by magic, Murphy, usually dogged by misfortune, doubles his luck. A rock that is about to fall on his head, suddenly changes direction. Carnivorous plants that usually nibble at him, avoid him at all costs… But unfortunately for Murphy, the four-leaf clover has some other surprises in store for him, and his luck is about to turn again!
Murphy and El Roacho, accompanied by his dog Rex, pursue Puck. Suddenly, Murphy electrocutes Puck, but El Roacho sucks him up. Murphy dives on El Roacho who releases the capsule containing Puck which doesn’t land very far from Rex. The delighted dog snatches it in his jaw and clearly isn’t letting go. Murphy and El Roacho use every strategy to retrieve the precious capsule, but they are truly taken aback by Rex’s tenacity!
Murphy invents a new gadget to capture Puck: the Immobilizor. This weapon shoots patches which stick to their pray and immediately renders them immobile. After having tested the efficiency of this weapon on the Pesters, Murphy begins his pursuit of Puck with his new fangled Immobilizor.