The film tells the story of Nicky, a former MI6 agent who was presumed dead after a mission went wrong. He is a highly skilled assassin and operative. On the other hand, Grimsby is a dim-witted but lovable fish factory worker living in Grimsby, England. The two brothers were separated at birth, and Nicky was raised by a wealthy family, while Grimsby grew up in a poor household.

"The Brothers Grimsby" is a 2016 British action-comedy film directed by Etan Cohen and written by Cohen and Sacha Baron Cohen. The film stars Sacha Baron Cohen, Mark Strong, and Rebel Wilson. The movie follows the story of two long-lost brothers, Nicky (Sacha Baron Cohen) and Grimsby (Mark Strong), who were separated at birth and reunited years later.

"The Brothers Grimsby" received mixed reviews from critics, with some praising the chemistry between Sacha Baron Cohen and Mark Strong, while others found the film's humor and action sequences to be uneven. The film holds a 32% approval rating on Rotten Tomatoes, with an average rating of 4.6/10.