4 - 1A Matter of Family Sep. 23, 2006
4 - 2Team Penguin Sep. 30, 2006
4 - 3Clayfaces Oct. 07, 2006
4 - 4The Everywhere Man Nov. 04, 2006
4 - 5The Breakout Nov. 11, 2006
4 - 6Strange New World Nov. 18, 2006
4 - 7Artifacts Feb. 03, 2007
4 - 8Seconds Feb. 10, 2007
4 - 9Riddler's Revenge Feb. 17, 2007
4 - 10Two of a Kind Feb. 24, 2007
4 - 11Rumors Mar. 03, 2007
4 - 12The Joining (1) Apr. 28, 2007
4 - 13The Joining (2) May. 05, 2007