Did the group manage to find out who the new villain was and what, exactly they had to do to win the looming fight?
That was revealed on Shadowhunters Season 3 Episode 3 when it became apparent that nobody was safe.
Meanwhile, Alec hosted a dinner party when his mother arrived in town but was there more to her meeting than met the eye?
Also, Jonathan revealed a shocking surprise for Jace in the CCTV cameras.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.