Travel the world with the Thornberrys and come face-to-face with blue sheep in Nepal, emus in Australia, marmots in Pakistan, flash floods in Siberia, Egyptian burial chambers, a runaway hot air balloon, a rock slide on the Karakoram Highway and more!
Eliza's good-natured intentions of assisting a struggling bird in getting food set off a chain reaction of destruction within the ecological system. It's up to her to retrace her steps and undo all of her actions while some animals face near extinction.
Eliza and Debbie must take over Marianne's duties when she is sick. Debbie goes with Nigel to shoot footage of a condor and Eliza must care for Donnie. Covered with feathers from a pillow, Donnie is snatched up by the condor and Eliza and Darwin must rescue him and help the condor find her real baby. In return for the favor, the condors stay on a tree branch so Debbie can get footage of them.
When the girls discover that their parents have mistakenly taken embarrassing home movies to an awards banquet, they join forces in order to save face. Their cross-island trip turns into a race against time in order to beat their parents to the podium and stop the world from seeing them at bath time.
Hungry for adventure, Eliza convinces her mother that she should take a llama over the Andean pass, meeting her family on the other side of the mountain. However, she is disappointed when her safety-conscious father commandeers the lead. Along the journey, her frustration builds as each attempt to explore is foiled by her father's watchful eye. Finally Eliza gains new respect for her father's resourceful manner, when he saves her life.
When Eliza discovers that a local performer claims he can talk to animals she believes she's found a soul mate. Eliza must enlist the help of some very ""urban"" animals to sneak into the sideshow and meet ""The Great Bangaboo.""
Eliza convinces a group of baboon-like apes to stand up to their legendary adversaries--""The Others."" Darwin, meanwhile, has met an almost identical group of apes with an identical problem. As Eliza and Darwin lead their separate groups into battle, they suddenly find themselves face-to-face--in an all out war! Now it's up to Eliza to quickly find a way avert the battle and teach the apes to get along.