It's been a busy day for the Street, but events take an even more dramatic turn when a shock incident changes the Platts' future... FOREVER. After checking the annexe, David warns Kylie and Sarah that the police are bound to discover Callum's body... but who will face arrest? Meanwhile, as the residents react to the drama at the wedding, an oblivious Cathy stuns Roy with a surprise proposal... but will he say yes?