American Todd Margaret (David Cross) bluffs his way into an apparently great job opportunity, heading up the sales team in his employer's London office. All he has to do is sell several thousand energy drinks before his boss (Will Arnett) arrives. Simple. Apart from the fact that he knows nothing about British culture and nothing about sales. Matters are further complicated when he ends up lying continuously to cover his ignorance and spectacularly fails to impress Alice, the beautiful girl he meets, while Dave, his British co-worker, takes full advantage of Todd's situation. Todd's increasingly poor decisions soon land him in big trouble, offending the majority of the British population and a great sporting institution along the way.