Cast members from the Discovery Channel's Deadliest Catch are leaving the unforgiving sea for the open road. Following in the footsteps of "The Guy Fieri Roadshow," Dog Whisperer Cesar Millan's "Pack Power Tour," and other head-scratching television-inspired live tours, Captain Sig and the Hillstrand Brothers are coming to Lowell Memorial Auditorium this fall to present a "rare, live, interactive" event for the show's fans and aspiring crab fisherman.