Watts & Parker are back and this time things are getting hot … and heavy. When an up-and-coming fitness model is murdered, Watts and Parker are stumped when there are no clear suspects or clues. That doesn't stop them from cracking the case — but not before they crash a couple cars, scale some scaffolding, and spill some milkshakes. When Parker goes undercover as a fitness model to catch the killer, things really start to shape up.