Which House M.D. episode features House waking with no memory after a bus crash?

“House’s Head” features House waking with no memory after a bus crash.

The episode is the first part of a two-part story from the fourth season. After the accident, House realizes that he may have encountered a patient before the crash, but he cannot remember the patient’s identity or the medical problem involved. He tries to reconstruct the missing events while experiencing neurological symptoms and fragmented recollections.

The story uses House’s damaged memory as a diagnostic puzzle. Rather than presenting the bus crash only as an external event, the episode makes House investigate his own mind and behavior. Its unusual structure blends hospital medicine, hallucination-like imagery, and clues that become meaningful as his memories return.

“House’s Head” ends with an unresolved medical and personal situation that continues in “Wilson’s Heart,” the second part. The titles are easy to reverse because both episodes are linked and aired as a two-part arc. “House’s Head” is the episode centered on the crash and House’s search for the missing memory.