In the topsy-turvy world of time travel no pun is safe. Sentient beings throughout the universes have been encouraged to believe that their existence is governed by a system of pot luck. The residents of Surrey, planet Earth are no exception. Take the autumn of 1965... It’s pot luck that Myrtle and Maud, two tea-loving cleaning ladies, work at a factory that has just installed a time machine. It’s pure chance that time-travelling health and safety experts are tracking the secret agents assigned to investigate this strange factory beset by odd occurrences. And coincidence that the Earth is in peril just as the inhabitants are taking their first, faltering steps into the time vortex. Pot luck? Yeah, right...