67 total votes
Orion in the Sky

Orion in the Sky

Mark serves his final day in the ER overseeing the first day of Gregory Pratt, a cocky yet eager new intern. Through observing his patients, he decides to forego chemotherapy, and spend his remaining days in peace. He also meets with his ex-wife, tells Weaver to live a little and leaves, never to return. Meanwhile, Abby plans to move back into her apartment when her landlord lets her know that Brian's moved out. (That's all that happened, really!)

Orion in the Sky is ranked on...

#8 of 101 The Best ER Episodes of All Time 3.3k VOTES List of the best ER episodes, as voted on by other fans of the series. With so many memorable episodes of the show, it's har...