This first episode highlights what Chris and Casey have ahead of them on this journey. It explains and describes the terrain, weather and hunting style the guys will be faced with and gives a back story on this project and how it is set into motion.

Chris and Casey cross multiple waterways, trudge through miles of deep muskeg and climb hundreds of feet of mountain in search of a giant caribou bull. Chris re-injures a knee, throwing major questions about his durability the rest of the hunt.

The guys push downriver in search of Yukon Bull Moose. Over two days are spent covering almost 20 miles of river. Chris and Casey push through before setting moose camp. The new location is unnerving; a grizzly is heard just outside the tent.

Day three at 'Prayer Point' presents Casey with another opportunity...at an inopportune time. While nature calls, so does mother nature. A bull appears across the river once again in response to cow calls from camp.

With days speeding by, the moose from Day 11 gone, the guys have more questions than answers. As critters loom in the night, the guys hardly rest easy. After a day of exploration, they find an abandoned trappers cabin, home to a very big grizzly.

On day three of the river movement, a hunting camp is desperately needed to boost morale of the crew, as well as continue the goal of downing a giant bull. Frustration boils over as the brothers admit for the first time they aren't sure what to do.

Casey spots a giant bull across the river and brings it down 10 yards from the water. A second bull makes his way up river toward the dead bull; Casey and the bull have a stand off, staring each other down from river's edge to river's edge.

On the heels of killing a giant bull, Chris and Casey get the 1500 pound moose quartered just before darkness falls and build a meat cache to preserve food rations for the rest of the journey.

Casey's bull was last seen floating down the river at a high rate of speed and into waters not yet seen by the brothers. Much anticipation awaits.