Khan is an Indian Muslim (Shahrukh Khan revealing himself as one of the world's greatest actors) with Asperger's Syndrome who travels to the USA, meets a gorgeous girl, marries, but, in the aftermath of 9/11, becomes a victim of racism, resultant marital problems and communal tensions. He then sets off on a trans-American journey to meet the President and clear his name.
An excellent film covering many topics, from romantic to tragic, from feel-good to weepie and with some wry humour on the way. The cynical might say 'Bollywood does Forrest Gump', but that would taking away from what this ambitious film achieves.