Season 4, Episode 14 Checkmate

First Aired: April 11, 2008

An imprisoned gang leader is suspected of passing secret instructions to a teen chess prodigy about which gang members should be killed. Don investigates and crosses paths with a former flame, Robin Brooks, he suspects is leaking information. Also, Charlie goes through FBI training to learn how to protect himself.

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  • Premiered: January 23, 2005
  • Rating: TV-14
  • Premise: An FBI special agent in Los Angeles teams with his mathematical genius brother to solve crimes. Don, a veteran investigator, relies on hard facts and evidence to catch crooks, while his younger brother Charlie, a brilliant university professor, analyzes ma… (more)

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