On a class trip to the museum, Lena gets the shock of her life when she comes face to face with the Grisky family portrait and discovers her mother wearing the exact same necklace that Lena lost to the Time Collectors.

This is the biggest performance of the year, and Lena tries her best to focus, but she's distracted and her mind is elsewhere. Lena vows to focus, after all, Gabrielle is watching her every move.

During the warm up, Max gets an invitation to a BLOK challenge. A big one with crews coming from all over Europe. But this time the dance members balk. How can they do the BLOK challenge and rehearse for the gala?