The Ninja accidentally summons a giant monster when he uses an ancient ninja lesson during a rap battle.
Randy is practicing the Earth Attack, although Randy gets wrong on his first try. Eventually, he gets it right and the NinjaNomicon tells him that words can be more powerful than a sword. Randy comments he can't stab an opponent with words. Meanwhile, Howard is getting excited about trying to join Rhymez's crew after he won Bash in rapping. Howard refuses to give Randy the Nomicon unless they join the crew, much to Randy's chagrin. The Nomicon flies and crashes in Rhymez's food, causing it to get on his hoodie. Randy humiliates him accidentally by apologizing in rhyme. He forces Randy to a rap battle if he wanted to reclaim his book. Howard, during this time, keeps trying to join Rhymez, but instead is placed in Randy's crew. Howard starts blaming Randy for humiliating Rhymez and Randy states that it was his fault for taking the Nomicon. Then, Howard states everything after that is his fault. Howard asks Randy for opinion of his costume while trying to think of something that rhymes. Randy suddenly overwhelms Rhymez with the ancient spell plus calling him a worm. Because of that, a gigantic worm was summoned, causing whoever argues or fights against Randy to be caught and brought underground.
- Bucky Hensletter
- Cass Simonson
- Dancing Fish
- Debbie Kang
- Haydn Bogroff
- Theresa Fowler
- Nameless Boy with Black Shirt
- Nameless Boy with Brown Hair and Blue Shirt
- Nameless Boy with Glasses and Blue Shirt
- Nameless Boy with Red Shirt
- Nameless Girl with Blue Sweater
- Nameless Girl with Mauve Dress
- The title is a reference to the 1979 film Apocalypse Now.
- "Word War I" is a reference to World War I.
- Tiny Timmy's name is based on the name "Tiny Tim" from Charles Dickens' A Christmas Carol.
- This is the second episode that features Howard and Randy's "power synth duo," "30 Seconds to Math."
- It is revealed that Howard is allergic to dust.
- This is one of the few episodes in which neither McFist, Viceroy, nor The Sorcerer make an appearance.
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