(Marinette and Mark are seen still in the limousine as suddenly some clown thugs jump into it. They kick them out of the vehicle, and suddenly the limousine stops again as a mecha comes out of nowhere. Inside of it is Harley Quinn.)

H. Quinn: Who wants to play a classic game of cat and mouse?

(Marinette and Mark prepare to transform.)

Marinette: Tikki, spots on!

(Marinette becomes Ladybug and Mark changes into Invincible.)

H. Quinn: Oh, two kids want to play heroes? That's good, because now the fun starts!

(Harley Quinn tries to stomp the limousine, but Invincible uses his super strength to stop her, and then Ladybug wraps her yo-yo around the mecha's leg and brings it down.)

H. Quinn: Hey, learn to play, kids!

(Invincible destroys the mecha, but Harley Quinn gets out of it in time and charges at Ladybug while spinning her hammer, but Marinette simply stands and makes her trip into her foot, falling down on her face.)

Ladybug: Oops.

(Harley Quinn gets up and angrily tries to swing her hammer at Ladybug, but Invincible comes in, and as the hammer hits his face, it breaks down.)

H. Quinn: (pout) Ow, you're no fun at all.

(Invincible simply punches Harley Quinn in the face, sending her to crash into a building.)

Invincible: This will shut her up for a while.

(Suddenly Invincible sees a familiar figure.)

Invincible: Father?

Ladybug: (confused) Mark, are you okay?

(Invincible points at the familiar figure who is none other than his father Nolan Grayson aka Omni-Man. He flies away, and Invincible chases after him.)

Ladybug: (worried) Mark?

(Ladybug tries to catch up with Invincible.)

Ladybug: Wait!

(Ladybug keeps trying to catch up with Invincible, who is still chasing after his father as the screen fades out.)