Three-year-old Louie is airlifted to St George's after being run over by a car while playing outside, with doctors expressing concern about his neck, which seems to be stuck in one position. Elsewhere, 14-year-old Josh is treated after injuring his ankle when riding a BMX with his father on the front. Meanwhile, 41-year-old Sam arrives in resus with a cut to her head and possible spinal and internal injuries after losing control of her car and crashing into a tree.