For decades only Episode 3 of The Enemy of the World was thought to have survived erasure, but the recovery of the five missing episodes was announced by the BBC on 11 October 2013. The five episodes were thought to be completely destroyed by a drunken Patrick Troughton after getting in a heated argument with his brother. It is unknown what initiated the argument but Patrick was reportedly heard shouting that he'll "erase" his brother from Doctor Who.