Shadowhunters - Season 1, Episode 10: Soundtracks

(Alternate universe) Clary runs into Simon, who is with a dorkier Isabelle and Alec; Isabelle compliments Clary's necklace; Alec & Simon discuss the Mad Hatter party; Jace pulls Clary away for a kiss.

Isabelle and Clary get ready for party

Mad Hatter party kicks off

(Instrumental) Jocelyn & Valentine dance together; Clary sees her parents happily enjoying themselves when Jace arrives to the party; Valentine comes over and introduces himself to Jace.

(Summer Heat Remix) Jace confronts Clary about avoiding him and asks her to dance; Alec invites an uninvited Magnus into the party; Simon tells Clary he plans to ask Isabelle to move in with him. 

Clary helps pump up Simon for his move-in proposal; Clary slips out of the party with Magnus; Jace finds Clary with Magnus, thinking they've hooked up breaks up with her; a Shax demon attacks.

Jocelyn joins Valentine on the dance floor; Jace asks Clary to dance as Valentine spots them and heads over to introduce himself to Jace.

The party starts, Isabelle tries out the Red Queen simulator; Valentine talks about his company and introduces Isabelle; Simon thanks Valentine for the gig.

Jace asks Clary why she's been avoiding him, then talks her into one dance; continues as Magnus is denied entry to the party until Alec invites him in and offers him a drink; Simon tells Clary he's planning to ask Isabelle to move in with him.

When Clary doesn't recognize Magnus, he shows her images of his cats and a Shadowhunter symbol in order to bring back her memories.