Estranged brothers James and Will Howl are back together for their beloved Grandmother's funeral. Loose cannon Will wants to celebrate their dearly departed, but the contrastingly humdrum James is determined to ruin the day by mourning appropriately. A late arrival and missed service sees James submit to his Brother's jaunty way of life and it is only at the end of a night of drunken debauchery that the half-wit siblings realise that they're stranded in the middle of nowhere and in possession of the wrong urn. The road redemption relies on the thing they fear the most - working together.