The story escalates when Tommy Pickles, is put into difficult situation with the birth of his new brother, Dil, who will not stop crying and is taking all of their parents' attention.

In this movie, Tommy's father, Stu, is invited to stay in Paris, France to rebuild a robotic Reptar used in a stage musical.

This film guest stars Susan Sarandon as Coco LaBouche, John Lithgow as Jean-Claude, and Mako Iwamatsu as Mr. Yamaguchi.

In this film, Stu and Didi Pickles decide to take a vacation with their children, Tommy and Dil, with their friends coming along.

In addition to The Wild Thornberrys cast members reprising their roles, this film guest stars Bruce Willis as the voice of Spike, Chrissie Hynde as Siri the clouded leopard, and Ethan Phillips as Toa.

[1] In October 2024 it was announced that the film was back on track at Paramount with Jason Moore on board to direct with Mikey Day and Streeter Seidell setting to pen the script.