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Lance and Lulu have decided to get married, but no ones told her parents. As the big moment rapidly approaches, Tom and Annie rush to the aid of their old friend to get everyone to the pool on time.
When a mysterious presence threatens to close down Mammas Pizza Palace, Annie offers to run the restaurant for one day so she and Tom can witness the unexplained phenomenon first hand.
While exploring the wilderness for fossils, Annie and Lance discover a cave, but before Tom can follow them inside, the mouth of the cave collapses, trapping Annie and Lance inside.
Annies all girl baseball team has organized a fund-raiser game, complete with a celebrity baseball player, in order to buy uniforms which they need to join a League.
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- Premiered: March 3, 1984
- Rating: None
- Premise: Twins use scientific principles (explained via animation) to solve mysteries and puzzles. (more)