when do the charmed ones find out about leo
Leo Wyatt When Leo returned, Phoebe discovered him levitating to change a light bulb and he confessed the truth to her. He also told her that as much as he loved Piper, he did not think their relationship could continue; witches and Whitelighters are not meant to be together.[episodes 6] He was later shot by a Darklighter's poison arrow while attempting to protect one of his charges. He went to the manor for aid, where Prue and Piper learned he was a Whitelighter. Piper used a spell to switch powers with Leo, so she could heal him. Piper then confessed she still loved him, but unfortunately Leo is still unconscious due to the poisoned arrow. Leo's "trigger" to make the healing power work was love, and because of Pipers confession, he was healed. Leo offered to give up being a Whitelighter to be with Piper, but she did not want him to turn away from his calling.[episodes 3]
Piper Halliwell Season seven (2004â€“05) starts with Piper and Leo attending two Indian friends' wedding, where they are possessed by the spirits of two passing Hindu deities, Shakti and Shiva.[36] Piper uses these powers to defend herself from demons dispatched to kill her by old enemy Barbas (Billy Drago).[36] In the episode "Someone to Witch Over Me", Leo concedes to the offer of membership extended by The Avatars (powerful neutral beings who seek to create a Utopian reality).[37] He informs Piper of his decision in the episode "There's Something About Leo"[38] and later urges the sisters to join sides with The Avatars in their plan to turn the world into a utopia against the warnings of Paige's boyfriend Kyle Brody (Kerr Smith) and The Elders.[39] Realising the Utopia robs people of their free will, Leo sacrifices himself.[40] Piper realises her children's pain over their father's loss and allies with The Underworld's new leader, Zankou (Oded Fehr), to force The Avatars to rewind time to before the change took place.[40] Leo later chooses to return to Piper in the 150th episode, "The Seven Year Witch", at the expense of his magical abilities, becoming mortal.[41] Piper and Leo encounter evil Future Wyatt (Wes Ramsey) for themselves in the episode "Imaginary Fiends", but are able to stop the last impediment to his becoming a power for good.[42] In the season seven finale, the sisters are forced to fake their deaths after they destroy Zankou and escape the constant threat of demon attacks, as well as police and government investigations.[43]