You will Watch The Amazing Spiez! Season 1 Episode 6 online for free episodes with HQ / high quality. Stream cartoons The Amazing Spiez! Episode 6 Operation Terrible Thirteen An experiment was stolen from a lab, and at the same time, children who are having 13th birthdays become mutated. The Spiez are sent to investigate and discovers that a girl named Kat is behind it all. Her previous birthdays weren’t so great so she wants to get revenge by turning other rich children into mutants during their birthdays, and therefore have the biggest party on the block. In the B-story, Megan tries to act cool so she can be invited to Tammy’s birthday party so she can prove to her brothers she’s cool. Tammy also gets mutated, gaining wide hips and a massive bootie.