Sig Hansen had his hands full -- and his boat full -- on "
Deadliest Catch" (Tue., 9 p.m. ET on Discovery). The crew found themselves in a frightening situation in turbulent water when they just happened to take a look in their stability tank.To ensure the stability of the ship, the tank is supposed to be empty, but theirs was completely full. As in, the Northwestern was carrying 50 tons of excess water. Without that empty tank to stabilize ...