With Liam off on a dangerous mission, all Sid can do is wait for news.

When the news comes, it has devastating repercussions not only for Sid, but for Liam as well. Liam has to decide if he should go home or stay on the island and finish what he and Felix started.

But first he has to manage not to freeze to death. Meanwhile, inside the castle, Isa learns that there is a new danger and she wonders if she will ever get to go outside again.

Grace grapples with a guardian who has set his eyes on her and doesn't understand the meaning of no. When all of their worlds collide, anything is possible…