Dan’s best friend Jack is getting married to the incredibly wealthy Ophelia, and Hannah is his plus one for the big day. Dan is extremely excited, while Hannah can’t wait to snoop around the happy couple’s country mansion. However, when the best man injures himself Dan must step up to the mark. Meanwhile, Hannah makes an enemy of Ophelia's father Charles. As the day proceeds, Hannah and Dan find themselves at the centre of events to disastrous consequences.