Highway to Heaven

Heaven on Earth (2x19)

: 26, 1986

Mark becomes deeply stricken with grief after believing he caused two tragedies involving young girls - one of them a victim of a car accident, the other trapped in a house fire - in a matter of hours. That, along with a litany of other complaints, prompts Mark to make a demand: That Jonathan erase everything that's happened and allow him to create his own vision of "Heaven on Earth."