Kevin's dads experience a parental nightmare when they accidentally leave him behind at Mykonos airport. Alone in their Soho flat, Kevin, seizing the opportunity, hatches a plan to defend his home from the quirky burglars Marvina and Harretta.

As they set their sights on the family's prized possession, Kevin orchestrates a series of ingenious traps to thwart their efforts and protect what matters most.