Annie, a single mother who is devoted to her son Charlie, starts a relationship with Mack. The problems start when Mack asks Annie and Charlie to move to New York with him.

Unexpectedly widowed, prim and proper housewife Grace Trevethyn finds herself in dire financial straits when she inherits massive debts her late husband had been accruing for years. Faced with losing her house, she decides to use her talent for horticulture and hatches a plan to grow potent marijuana which can be sold at an astronomical price, thus solving her financial crisis.

When the luckless Martin and Renato have the bright idea of starting up a guided coach tour of the M25, London's orbital motorway, they think they're on to a winner - but they soon discover they're on course for disaster.