The Machete star Danny Trejo stars in a horror about a group of zombie apocalypse survivors taking refuge in Alcatraz prison, fighting for survival when the undead discover them.

Taking inspiration from the TV show The Walking Dead, the film drags you from one graphic zombie attack to the next, with the plot an almost necessary evil. Both the script and plot are sub-par, but it will appeal to gore-hungry horror fans and is lifted by an unusually reliable cast of TV mainstays (including the Star Trek actor Levar Burton).

Ultimately unremarkable fare from the studio The Asylum (usually purveyors of low-budget blockbuster imitations such as Transmorphers), the film will entertain but, both in terms of production and story, it’s a B-movie through and through.