After Bobb and Steamer trap themselves on the opposite side of a canyon, a few of Woolyville’s residents band together to find an ingenious way to reach the other side to rescue them. Meanwhile, in the present, Phil helps Mike with his basketball skills with aid of a catapult.
Steamer is left behind as the other mammoths leave on vacation. Cro and the Neanderthals come up with a way to balance out everyone's time spent babysitting him.
Og discovers a discarded invention and has to defend it as the rest of Woolyville demands its destruction.
Cro invents a way to get everyone up the mountain to enjoy his new sport.
Phil goes a little overboard in his attempts to help the humans create a window in the cave.
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Earl and Mojo have the humans build a bridge for the Grand Medallion of Merit.
Pakka helps find a way to keep Esmeralda cool in the summer heat.
Cro discovers a 'seemyselfer' and uses it to watch Og and Gog compete.
Nandy has a final request, to fly.
Earl and Mojo's insult war gets mixed up with an important message about the volcano.
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