After a fight on the ice, a 22-year-old minor league hockey player collapses and coughs up blood; House stuns Wilson; Chase has an offer for Park.
Two teenage girls run over a deaf man with their car but they didn't kill him - he was already dead.
Grissom, Nick, and Warrick take the case of a jogger who was killed by a wild animal in the park. It gets complicated when they discover that the jogger had his liver removed after he was killed.
On the day Grissom has to evaluate his team, a head is found in the trunk of a car. While Gil and Catherine work on the head, Sara and Nick investigate a body in the desert that's missing its head.
A boxing champ dies in the ring after taking a brutal beating from his nemesis, but Grissom finds evidence that points to murder. (TV-PG)