with 25 episodes premiered on Invalid Date

with 13 episodes premiered on January 23, 2005

with 24 episodes premiered on September 23, 2005

Season two has several changes to Don's FBI team: Terry Lake is reassigned to Washington and two new members join Don and David Sinclair: Megan Reeves and Colby Granger. Charlie is challenged on one … see more

with 24 episodes premiered on September 22, 2006

Charlie and Amita intensify their relationship, as do Larry and Megan, especially after Megan's kidnapping. Amita has trouble adjusting to her new role as a CalSci professor, and Larry announces his … see more

with 18 episodes premiered on September 28, 2007

with 23 episodes premiered on October 3, 2008

with 16 episodes premiered on September 25, 2009