Cockneys vs Zombies (2012)

In a building site being developed by Hartman Construction in the East End of London, two builders discover a catacomb from the year 1666, sealed by order of Charles II. Instead of alerting the construction crew or the authorities, they enter into the catacomb to search for treasure, but inadvertently awaken two zombies, which causes them to get attacked and bitten, becoming zombies themselves and starting a zombie outbreak in the area starting with the rest of the construction crew outside.

Elsewhere, Terry MacGuire and his younger brother Andy have planned a bank robbery so they can save their grandfather Ray's retirement home from being demolished. They recruit their cousin Katy, hopeless Davey Tuppence, and "Mental" Mickey, an unstable Iraq War veteran who has a metal plate in his forehead, and gather a large supply of weapons. During the robbery, the group find they have crashed an embezzlement deal between the bank manager and the head of Hartman Construction. Expecting to find a few hundred grand, they find themselves staring at £2,500,000 in cash. The bank manager had thought they were from Hartman due to their costumes, but quickly realises otherwise and presses an emergency button to summon the police. With the bank surrounded, Mickey takes charge of the escape plan and takes bank workers Emma and Clive hostage. However, upon attempting to leave the bank, the group find that the police have been killed by a growing horde of zombies. They escape in their van with the cash from the vault.

Meanwhile, at the retirement home, the zombies attack the residents. Ray and residents Peggy, former gangster Daryl, Doreen and Eric take refuge in the kitchen; Ray also rescues a resident named Hamish and gets him inside.

The MacGuires, Katy, Mickey, Davey and their hostages drive through a devastated East End until they reach their safe-house, where they stowed their car earlier. Mickey is bitten by a zombie, and the group finds out from the radio about the extent of the epidemic but don't know what to do with themselves. Emma pleads with Mickey and Davey to let her and Clive go, saying she does not care about their 'selfish' plans, and Katy tells her they are not robbing the bank for themselves, but to save the retirement home.

Mickey, growing more irrational and tired of the friendliness of his fellow bank robbers, decides to leave and takes Emma and Clive with him to a side room where he ties them up, and sits down to rest. Soon after, Mickey dies and turns into a zombie due to his previous bite wound. Realising shooting him in the head cannot kill Mickey due to the metal plate in his skull, Terry destroys him with a hand-grenade he confiscated earlier, shoving it into Mickey's mouth. In the subsequent confusion, Clive picks up Mickey's gun and insists on handing the group over to the police. However, he is promptly attacked and eaten by zombies who sneak up behind him while his attention is distracted, and reflexively shoots Davey dead by accident in the process.

The group pack the money and themselves into Terry's waiting car, intending to travel to the retirement home, but on the way they stop to look for Emma's younger sister. Terry and Emma find her as a zombie, but Emma decides not to kill her in case a cure is found. They set off again, deciding to arm themselves from Mickey's gun cache. However, the group realise that the car is inadequate for ferrying the pensioners, so Katy hot-wires a traditional red London double-decker bus.

Arriving at the care home, they manage to break the zombie siege and rescue Ray and the other surviving residents. They all escape aboard the bus, but it breaks down before it can reach safety and the group are forced to abandon it. Realising that they are close to the river, they head off to find a boat. Making their way to a mooring they find a boat, and Peggy finds the keys, but they realise as they try to pull away that it is still chained up. Ray decides to sacrifice himself to save the others, but he still manages to survive and joins the rest on the boat as they make their final escape. On the river, the group wonder what will happen next; Ray tells them they can take East London back for themselves.