Stella (Lacey Turner) summons her friends Hannah (Hannah Tointon), Jude (Nina Toussaint-White) and Grace (Phoebe Fox) home to Camden with a "Switch" text.

The Witches of Camden attempt to bury the hatchet with their arch-nemeses, the posh Witches of Kensington.

The Witches confess to Stella that they cast a spell years ago to help her forget an ex-girlfriend, but when Lucy (Rosamund Hanson) comes back into her life, Stella quickly falls back in love.

Grace is mugged on the eve of the girls' coven anniversary and decides she wants to leave London for good.

Grace's relationship seems to be blooming nicely, Jude gets more than she bargained for, Hannah begins tutoring and Stella looks for love.

The Witches of Kensington threaten to derail the Summer Solstice, and the girls must put aside their personal problems to stop them.