Ben 10 s1e1 And Then There Were 10 s1e10 Lucky Girl s1e11 A Small Problem s1e12 Side Effects s1e13 Secrets s1e2 Washington B.C. s1e3 The Krakken s1e4 Permanent Retirement s1e5 Hunted s1e6 Tourist Trap s1e7 Kevin 11 s1e8 The Alliance s1e9 Last Laugh s2e1 Truth s2e10 They Lurk Below s2e11 Ghostfreaked Out s2e12 Dr. Animo and the Mutant Ray s2e13 Back With a Vengeance s2e2 The Big Tick s2e3 Framed s2e4 Gwen 10 s2e5 Grudge Match s2e6 The Galactic Enforcers s2e7 Camp Fear s2e8 Ultimate Weapon s2e9 Tough Luck s3e1 Ben 10,000 s3e10 Monster Weather s3e11 The Return (1) s3e12 Be Afraid of the Dark (2) s3e13 The Visitor s3e2 Midnight Madness s3e3 A Change of Face s3e4 Merry Christmas s3e5 Benwolf s3e6 Game Over s3e7 Super Alien Hero Buddy Adventures s3e8 Under Wraps s3e9 The Unnaturals s4e1 Perfect Day s4e10 Ken 10 s4e11 Ben 10 vs. The Negative Ten (1) s4e12 Ben 10 vs. The Negative Ten (2) s4e13 Goodbye and Good Riddance s4e2 Divided We Stand s4e3 Don't Drink the Water s4e4 Big Fat Alien Wedding s4e5 Secret of the Omnitrix (1) s4e6 Secret of the Omnitrix (2) s4e7 Secret of the Omnitrix (3) s4e8 Ben 4 Good Buddy s4e9 Ready to Rumble