Adventure Time Crossover 3 is the exciting new series of the Adventure Time Crossover series.
Leonard may be dead, but as his trusty friend Young Autobot and his friends go and fight Dead Justice, Leonard is brought back from the dead, and must help his friends and look for more allies before preceding to war. But as Dead Justice destroys his way to battle, another villain wants to take over the world to avenge his old master, and his name is Scarecrow.
Team of Heroes
- Leonard McLean
- Young Autobot (Autobot Prime)
- Bugs Bunny
- Lola Bunny
- Princess Bubblegum
- Gumball Watterson
- Darwin Watterson
- Vinnie King
- Ricky Munsen
The Dark Brotherhood
- Dead Justice (Main villain until episode 5)
- Scarecrow (Main villain from episode 5)
- The General
- Saren Arterius
- Kai Leng
- Snail (seen as a easter egg on every episode)
- This series has episodes with plots as well as 25 episodes instead of 14.