Hoping for a job as a commercial diver, Erik welds a patch on a sunken submarine. Three lessons into his bush pilot training, Ron ends up in a hospital. ...

A rookie tree climber jeopardizes his team when he ignores expert advice about scaling a redwood. Dan and Erik attempt a dangerous underwater welding job in San Diego. Am ...

Rookie caver, Kevin, leads an expedition into the depths of a Tennessee cave. Three hopeful rookies compete for a high-flying position with the Sonoma Marin Tree Men. A n ...