Every year for half a century, adventurers, fans and filmmakers have flocked to Banff, an unassuming little town at the foothills of the Canadian Rockies, to screen adrenaline-fueled, soul-stirring outdoor-sports flicks before the showcase takes the rest of the world by storm. This week, the Banff Mountain Film Festival World Tour stops at the Flynn Main Stage in Burlington, bringing two nights of jaw-dropping feats to local enthusiasts. Hosts Cassie Yahnian and Danielle LaRock from the "National Park After Dark" podcast emcee the action-packed cinematic display of first ascents, personal triumphs and inconceivable journeys that continuously teeter on the edge of the impossible.