It is 1903 and on the edge of Niagara Falls, something iswrong at Nikola Tesla's generator plant, where someone – orsomething – is sabotaging the maverick inventor's work. HasTesla really received a message from Mars? And where does hisgreat rival Thomas Edison fit into these events? The Doctor andher companions Yaz, Ryan and Graham must join forces with oneof history's greatest minds to save both him and planet Earth.
Adam and Karen's new living arrangements cause chaos for theirfamily when an unexpected visitor tips them over the edge.Elsewhere, David embraces his new role but faces humiliationfrom a former adversary, while Pete's time on a jury hasunexpected consequences for Adam.
Mike tries to avoid hurting Vanessa's feelings due to hersnoring. Meanwhile, Mandy goes overboard preparing for thearrival of Kristin and Ryan's new baby.
As the witches of the Salvatore School come together tocelebrate Coven Day, the latest monster to infiltrate theschool targets Alyssa Chang and the other students by spreadingdiscord and creating chaos among the covens. Elsewhere,Alaric, Lizzie and Josie search for a solution that keepsJosie protected from the dark magic brewing inside the moramiserium. Fed up with feeling powerless alongside Hope, Landonasks her to give him self-defense training. Finally, Alaric'spast comes back to haunt him.
Scarlet reels over their new dynamic, forcing everyone toadjust. Jane tries to cope with the changes to Jacqueline'srole at the magazine, and joins forces with Kat and Sutton tomake it clear how much she means to them. Sutton takes stock ofher position at Scarlet, as Richard considers a world outsideit. And Kat butts heads with RJ Safford over response to thenew direction of the magazine.
It's been three months since Delilah and Eddie revealed thetruth about their affair, and Sophie continues to rebelagainst her mother. Maggie, Gary and the gang gather for theopening night of Danny's play, and Rome and Regina take stepstoward adopting a baby.
Best Baker in America's Scott Conant teams up with actressSasha Pieterse to get the truth and a loss out of Bobby Flay.They get a little help from talented farm-to-table chef AnthonyLo Pinto and seafood maven Franco Robazetti.