S2 E1 • Les Gardiens du grand secret

Première diffusion : 23 septembre 2006

S2 E2 • Le Gourou des profondeurs

Première diffusion : 30 septembre 2006

S2 E3 • Slamacus, le silencieux

Première diffusion : 7 octobre 2006

S2 E4 • Le Tyran imperceptible

Première diffusion : 4 novembre 2006

S2 E5 • Affaires de famille

Première diffusion : 11 novembre 2006

S2 E6 • Les Super-zéros

Première diffusion : 18 novembre 2006

S2 E7 • Le Chasseur de primes

Première diffusion : 2 mars 2007

S2 E8 • Invasion spatiale

When Rev and Lexi tamper with Tech's X3000 Automated Weapon System mistakening it for a video game, Melvin the Martian comes to Acmetropolis to destroy it after his spacecraft was hit by a missile from Tech's invention. When Melvin threatens to shrink the planet, Lexi admits she tampered with Tech's invention and Melvin orders that Lexi be handed over to him in 24 Hours. Can the Loonatics find a way to thwart Melvin before Acmetropolis becomes the only planetary location to be "hard to find on any map."

Première diffusion : 9 mars 2007

S2 E9 • Apocalypse

Première diffusion : 16 mars 2007

S2 E10 • Impératrice du Rose

An old friend of Danger Duck, Officer Pinkster Pig, helps the Loonatics in their fight against gangsters Stoney the Stone and Bugsy the Bug. But since he helps, things have been going bad for the Loonatics.

Première diffusion : 23 mars 2007

S2 E11 • Quand la musique fait hic

The Loonatics face off against Boötes Belinda, a villain and his band who uses rock music to terrorize Acmetropolis. When Zadavia is captured, he orders Tech to build a high-tech guitar for him. Now the Loonatics must save Zadavia and defeat this evil band. It turns out that the band are robots led by Rupes Oberon, a man who wrote a theme song for Zadavia on Freleng, but was shot down since there already was a theme. He uses the guitar to steal all of Zadavia's powers.

Première diffusion : 20 avril 2007

S2 E12 • La Quête des doubles [1/2]

Now that Optimatus is free, he alongside General Deuce and Rupes Oberon plan to use Planet Blanc's wormhole generator to take over the universe. Planet Blanc is said to be at the center of the universe, and that every point in the universe can be instantly travled to with ease from it. The Royal Tweetums contacts the Loonatics for help. It turns out that Tweetums evaded capture. The Loonatics must find him before Optimatus does, but not without help from an old enemy.

Première diffusion : 4 mai 2007

S2 E13 • La Quête des doubles [2/2]

After receiving a message containing clues on Tweetums' whereabouts, the Loonatics and Sylth Vester seek out where Tweetums is. Meanwhile, General Deuce and Optimatus begin their plans to conquer the universe.

Première diffusion : 11 mai 2007