Ricky Ricotta and his best friend, an amazing, giant flying robot, save the world from an invasion of massive mutant mosquitoes from Mercury.

שם הספר
Captain underpants and the big, bad battle of the bionic booger boy
Captain underpants and the wrath of the wicked wedgie woman
Captain underpants and the perilous plot of professor poopypants
Captain underpants and the attack of the talking toilets
Captain underpants and the invasion of the incredibly naughty cafeteria ladies from outer space