S1, E5: In a touching tribute, David honors his longtime comrade Chris O'Hara by resurrecting a signature stunt that earned Chris his legendary "air awareness" moniker. Down under in Australia, a familiar expert joins the crew to school the actors in his craft. Chris shoulders the weight when Ryan Gosling's stunt double, Ben Jenkin, tackles two daring new acts, raising the stakes and the risk of mishaps to unprecedented heights.