Dr Mercer's night terrors lead to Mesogog's latest scheme. He has Elsa connect the Geno Randomizer to a machine, which taps into and exacerbates the DinoThunder Rangers' dreams, with the hope of destroying them in their sleep. Tommy dreams of fighting the Squidrose monster, based out of his calamari dinner that night. Kira's reptile homework leads to her facing the lovesick Croco D'Vile monster in her dreams. Ethan's research on primates creates the Rumba Monkey monster, who monkeys around with his dreams. Conner, his nightmare inspired by recent Christmas shopping with his mom, faces the festive Rude Elf monster. Each REM-based baddie is defeated, though dreams of teamwork, weapons, and Megazords. The only one to get a good night's sleep is Trent!