The new installment of the Sharknado franchise takes place 5 years after Sharknado 3: Oh Hell No! There have been no Sharknados in the intervening years, but now they’re appearing again in unexpected ways.
Seagal stars as mob kingpin Mr. Alexander, an old-school boss who rules his criminal empire with both nobility and brutality. For a simple prison hit, he sends his best enforcer and protégé Roman Hurst (Foster). When the hit goes wrong, Hurst is forced to pay the price of his failure: banishment in the city that he almost once ruled. But a war is brewing for the soul of the city between Alexander, a cold-blooded gangster known as 'The Iceman" (Rhames) and a merciless Mexican cartel. Hurst, with the help of an ex-con restaurant owner (Trejo) who has a few hidden moves of his own, will rediscover his own will to survive the coming conflict and to wreak vengeance on those who have wronged him.
Following an in-ring accident, Dalton Hunt retired from the world of mixed martial arts at the top of his game. Unable to outrun his guilt, he lost his family, his title, and his way. But when a crooked promoter lures him back into a fight against the current undefeated champ, Patrick "The Brick" Wahle, Dalton must enlist the aid of an enigmatic trainer to turn him back into a warrior so he can stand tall and do battle once again.