David Thomas Jenkins

When assigned to forgive others, Maya writes to her father to try to forgive him for leaving as Riley tries to forgive Auggie for destroying something precious to her.

A suspect from Sara's past returns, causing her to question her future as a CSI. (TV-PG)

Jonas and the team make a Dept. of Defense official, whose bad judgment caused a mission to fail, go on an assignment with them where he will experience the realities of war first hand. Back home, Kim is secretly reunited with her children.

When a flight attendant is murdered, the CSIs uncover all the dirty secrets of airplane travel.