It's Valentine's Day, and Hacker captures Doctor Marbles and Lady Ada Lovelace (Jane Curtin), placing them inside a time machine invented by the mathematically-minded Lovelace. The kids and Digit must decipher a series of poems left behind by Lady L, and free them from the time machine before it time travels to the nether world of cyberspace - never to return! Will the kids get there in time, or will Valentine's Day bring nothing but broken hearts?