Brian Truitt

USA TODAY

Get ready for a kid-friendly dawn of justice.

Instead of civil war, there's only good-natured competition and derring-do on tap when the Powerpuff Girls — who just returned to the airwaves last month with a new animated Cartoon Network show — team up with the youngsters of Teen Titans GO! in June.

"Jump City will never be the same when our little superheroes Blossom, Bubbles and Buttercup meet up with the Teen Titans for the very first time. When these two worlds of superheroes collide, it will surely be something to remember," says Powerpuff Girls executive producer Nick Jennings.

Powerpuff Girls to the rescue, again

The crossover Titans episode features the Girls' arch enemy Mojo Jojo up to no good in the Titans' town, and the Powerpuff trio teams with their fellow squad to take the villainous monkey down.

According to Teen Titans GO! producer, Titans members Cyborg and Beast Boy find Mojo Jojo to be pretty cool for a talking monkey, the Girls compete with Raven, Starfire and Robin to see which superhero team is better, and there's a catchy song called Monkey Army that's bound to get stuck in fans' heads.

How the 'Powerpuff' voice actresses are exactly like their 'Girls'

"It's a really fun crossover that came about in a very organic way," adds Titans producer Aaron Horvath, "and it was really great getting to put these two iconic superhero teams together.”

Each of the groups also have new two-part episodes airing on Monday. On the Memorial Day edition of The Powerpuff Girls (6 p.m. ET/PT), there's a problem with the water in Townsville plus Buttercup has to learn to be more calm to tackle the returned bad guy Man-Boy. And on Teen Titans GO! (6:30 ET/PT), Starfire and Raven round up some extra female heroes and villains to help rescue Robin, Beast Boy and Cyborg from The Brain.