Iris will be celebrating with a familiar Star City face on next week’s The Flash!

It’s bachelorette party time for Iris, which brings Felicity to Central City. Of course, their party plans quickly take a back seat as the girls come up against the villain of the week from the looks of the photos released. Might their interrupted have anything to do with the appearance of Caitlin’s old boss, Amunet (Katee Sackhoff), and the ominous threat she receives?

Elsewhere, the guys decide to make a night of it but soon find themselves in their own bit of trouble. 

The episode was written by Lauren Certo and Kristen Kim, with Laura Belsey directing.

Check out the photos below.

[ngg_images source=”galleries” container_ids=”321″ display_type=”photocrati-nextgen_basic_imagebrowser” ajax_pagination=”0″ order_by=”sortorder” order_direction=”ASC” returns=”included” maximum_entity_count=”500″]The Flash airs Tuesdays at 8 p.m. on the CW. “Girls Night Out” airs Tuesday, November 7 at 8 p.m.