Bones (2005)

S06E23 The Change in the Game

In the season six finale, the team delves into a chilling mystery involving the unrecognizable remains of a bowler discovered lodged in an automatic pinsetter at a bowling alley. When they reach a standstill in their investigation, Booth and Brennan opt to go undercover, infiltrating a competitive bowling team to uncover the truth behind the grim discovery.