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A prehistoric baby dinosaur is brought through time to the present and the Smurfs try to return him with the help of a magic key.
Did You Know?
"The Smurfs That Time Forget Act 3" was later renamed "Lost In The Ages" when it was aired in syndication. Act 1 and 2 retained the original episode title when they were combined into a single episode. Act 3 would be immediately followed by "Cave Smurfs". See more
Early in "Smurfs That Time Forgot: Part 1," the Smurfs found a frozen triceratops hidden in a mountain after Brainy unintentionally cause an avalanche. Since the triceratops lived during the Mesozoic era, where the Earth is much warmer than it is today (and the landmass centered near the Equator millions of years ago), it is not possible for ice to appear on land or for any creature from that era to be encased in it. See more