This week, Arrow inverted the usual structure and focused mainly on the flashback saga, with only brief, sporadic scenes set in the present and exploring the immediate aftermath of Ollie's showdown with Moira. It made sense to switch up the approach this week. Ollie's life-threatening injury offered a convenient excuse to spend the episode dwelling in his memories. And with Manu Bennett having just debuted as Slade Wilson last week, the flashback material is more interesting than it's ever been. By focusing squarely on the Ollie/Slade dynamic, "The Odyssey" established itself as perhaps the finest episode of the series so far.