Complex sentence: Babe regains her memory revealing that Sylvie is the one who locked her in the freezer, but it later transpires that Abi is the culprit as an act of revenge and that Babe wants Sylvie to be sent back to a care home.
Split into simpler sentences: Babe regains her memory revealing that Sylvie is the one who locked her in the freezer. But it later transpires that Abi is the culprit as an act of revenge and that Babe wants Sylvie to be sent back to a care home.