Deadliest Catch Captain Keith Colburn suffers a medical emergency during season 20. The longtime Discovery Channel star falls to the ground during one episode and afterward tells his brother he’s “scared” as he “can’t feel his left side.” Monte ‘Mouse’ Colburn and Keith are at the helm of the F/V Wizard during season 20. The brothers butt heads during episode 15. Their argument gets so heated that Keith collapses in the wheelhouse leaving Mouse extremely concerned. As if the treacherous weather conditions and technical hurdles aren’t enough for the crew to battle, the Colburn brothers panic ov…