Mr. Fearless is case #8 in House M.D. - Critical Cases. Gregory House is at a monster truck show to see one of his idols, Dave "Mr. Fearless" Cullen, a motorcycle stunt rider. However, after Cullen successfully completes a jump, he crashes. House is allowed to give emergency first aid, but finds Cullen, although conscious and suffering no sign of concussion, is blind. Cullen shows no sign of disorientation and is soon able to tell House that the blindness came on him suddenly just after he completed the jump. House treats a scraped elbow and a dislocated shoulder before bribing the ambulance driver to take him to Princeton-Plainsboro Teaching Hospital.