Jac prepares to launch the new Digby Stent in a wave of publicity - only to discover someone has stolen the patent for the device. Hanssen tries to handle the setback with diplomacy - but can Jac be as cautious and forgiving? Dom is determined to be the best doctor he can - which proves easier said than done when a new registrar makes his life difficult - and Fletch tries to apologise to Naomi for standing her up on her birthday.