Izzy Frost, is a promising Cardio Surgical Resident at City General who has sacrificed everything to build her career. But everyone needs to let off steam and have a bit of fun, don't they? Just what will a little fun cost Izzy? Izzy's fun comes in the shape of Cara O'Leary a hot athletic EMT who has a huge appetite for fun, a crazy ex and no desire for love. Coming from very different backgrounds they only thing they have in common is physical. What could possibly go wrong?