Hacker hatches a plan to ruin Mother's Day by derailing a train that picks up a rare flower that symbolizes the holiday. Math topic: decimals. Also: numbers and operations. Voice of the Hacker: Christopher Lloyd.
The kids fail to stop The Hacker from stealing Pandora's box, earning the wrath of Zeus, who makes them solve a riddle involving fractions. The Hacker's voice: Christopher Lloyd.
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