Incidents which are a-million-to-one-chance for most people happen to Tom Chance as a matter of course. Alison becomes enmeshed in Tom’s bizarre world when a series of strange "coincidences" lead to the pair being arrested for housebreaking while dressed only in underwear -- and that’s just the first episode! Nothing is ever Tom’s fault, of course, just the inevitable chain of coincidence that seems to follow him wherever he goes.

Throughout the series, Tom attempts to conquer the fickle finger of fate that hovers over him, and Alison learns that life with Tom Chance never turns out to be quite what she expected.