After mounting an elaborate bank raid British Gangsters return to collect money left buried from a bank job, hoping to avoid the town and the attention of the police in a small Spanish town. Just as one of the gangsters develops a way to remove endorphin's from the brains of the newly departed. Injecting the extracted fluid into the lower ranking gang members, to test the full effects of this new powerful BIO-DRUG. This throws the crew members plans into total chaos and no one could predict what was to come next.