Danny (Blake Harrison) and Milo (George Webster) have been friends since forever, but recently life seems to be pulling them apart. At 24, Danny is celebrating his pet insurance promotion and engagement to girlfriend Kate (Georgina Campbell), but all Milo wants to do is keep getting high. The morning after Danny's engagement party a freak accident throws him and Milo into a parallel universe where their lives are drastically different. Stranded and with no way home, Danny is desperate to find a way back to Kate, but Milo realises that being Milo in a parallel world is a lot better than being Milo back home. That is until they discover that they're being hunted by a terrifying shaven headed assassin who's determined to kill every version of them in every reality. And so Danny and Milo embark on a series of adventures through the multiverse which will test their friendship to the limits. Will Danny ever make it home to get married? Will Milo be able to resist temptations thrown his way? And why are the versions of Danny and Milo with big beards and swords so desperate to find them?