Malcolm and Terri's future together is uncertain after Mitch and Pussle's arguments over a patient with hypothermia force their mutual jealousy over Terri out into the open. Luke puts his job on the line when he involves himself in his brother's attempt to secretly treat a criminal associate in the ER. Mitch struggles to come up with a diagnosis for a Park Ranger. Connor is cursed by a patient who claims to be a wizard.