With the Book of Shadows,Zankou goes after the Nexus again.Re-grouping at Magic School,they manage to cast a spell that takes the Nexus out of Zankou once he gets it.The sisters draw Zankou's focus away from the Nexus and onto themselves.
The Charmed ones go to the Island of Valkyries, a mythical place ruled by warrior-maidens, to rescue Leo, but in doing so they unleash the Valkyries on San Francisco! The question is, who put Leo there in the first place ?
In order to combat the Titans, Leo gives the girls the ultimate power to vanquish the Titans, recreating them as Greek Goddesses, despite the risk that they could be seduced by their vast new powers.
Cole gets given even more power by the avatar. Cole casts a spell which alters the timeline. In this reality the Charmed Ones have never met Paige and have become little more than vigilantes following Prue's death.
The Power of 3 has been destroyed. Prue is dead, but while Piper and Phoebe mourn and Cole is confronted by two demonic bounty hunters a young girl finds herself drawn to the Halliwells.
Rodregis was making plans to kill the sisters, when Tempest, a sort of time demon, came to help him. Rodregis was sure that he could kill the sisters on his own, but he let Tempest help him. So this Wednesday started.........last episode of season 1
This was the beginning. In this episode the three Halliwell sisters, Prue, Piper, and Phoebe , were brought to their grandmother's house to live. It had been in their family for generations...
season 1 first epsiode