Ben 10 — Season 4
13 episodesFirst aired 7 July 2007
E1Perfect Day
5.7Jul 200722m
Enoch and the Forever Knights return, putting Ben in a dream world where he's tricked into having the perfect day. However, his dream quickly turns into a nightmare.
E2Divided We Stand
6.7Jul 200722m
Ben gains another Omnitrix hero to use, which he calls Ditto. Gwen can't stand being around the multiplying Dittos, and they end up giving her headaches. The Dittos, though, prove to be real helpful against Dr. Animo and his multiplying Stinkflies after he extracted some of Ditto's DNA.
E3Don't Drink the Water
7.0Jul 200722m
After being in contact with water from the Fountain of Youth, Grandpa Max and Ben are reverted to being kids again. Now, Gwen is left to take care of them while stopping Hex from finding the fountain's source.
E4Big Fat Alien Wedding
7.0Jul 200722m
Ben, Gwen, and Grandpa Max attend a family wedding. During the ceremony, a strange alien attacks. Will the two ever finish this strange wedding?
E5Secret of the Omnitrix (1)
6.2Aug 200722m
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across spaceto track down the Omnitrix's creator, Azmuth.
E6Secret of the Omnitrix (2)
6.4Aug 200722m
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across spaceto track down the Omnitrix's creator, Azmuth.
E7Secret of the Omnitrix (3)
6.6Aug 200722m
During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across spaceto track down the Omnitrix's creator, Azmuth.
E8Ben 4 Good Buddy
6.4Sept 200722m
While on a desert highway, the RV gets stolen by a group of modern-day pirates, who use it to go on a robbery.
E9Ready to Rumble
6.7Sept 200722m
When Ben accidentally breaks Gwen's laptop, he participates in the "Ultimate Wrestling Competition" as Four Arms to get the prize money for a new laptop to replace Gwen's broken one.
E10Ken 10
7.0Oct 200722m
In the future, Ben gives his son, Ken, an Omnitrix for his 10th birthday. However, Ben will have to learn to trust him with that power.
E11Ben 10 vs. Negative 10 (1)
6.3Mar 200822m
Ben, Gwen, Cooper and Grandpa Max face their last battle ever against the villains they have encountered and they will battle to get the world's most powerful energy source.
E12Ben 10 vs. Negative 10 (2)
6.7Mar 200822m
The Forever King sets his plan in motion and recruits the most powerful enemies Ben has ever faced in order to steal the world's most powerful energy source.
E13Goodbye and Good Riddance
7.2Apr 200822m
The summer finally ends. Ben and Gwen have to go back to their normal lives. Grandpa Max tells Ben to keep the Omnitrix a secret from everyone, even his parents. Ben agrees, but Vilgax arrives and he'll stop at nothing to get the Omnitrix.