Released two years after Deep Blue Sea 2 (2018) and released 20 years after Deep Blue Sea (1999). Rick Lowell provides an explanation establishing the connection between the three films.
Work began on the film in the summer of 2019. The film wrapped production in May 2020.
It is the third and final installment of the Deep Blue Sea film series, and a direct sequel to Deep Blue Sea 2.
The film was released on July 28, 2020 on Digital HD by Warner Bros. Home Entertainment, and was released on Blu-ray and DVD on August 25.