The roof is blown off the new Dominator; Sean unleashes tension in the path of a west Texas twister.
The deadliest tornado of the season tears across Mississippi, destroying homes and changing lives.
Reed pursues TV weather woman Ginger Zee; a long-time chaser calls it quits.
Sean gives the reigns to his meteorologist-navigator who leads them to their best tornado intercept.
The team struggles with the death of a teammate; Reed arms the Dominator with probe cannons.
South Dakota's storm season leaves the team with no time for drama.
Reed's cannons are locked and loaded, but multiple tornadoes prove a hard target.