With El and Max looking for Billy, Will declares a day without girls. Steve and Dustin go on a stakeout, and Joyce and Hopper return to Hawkins Lab.
Max and El decide to spy Billy using El's power and she sees Heather and Billy. However El is attacked by a monster and they decide to check Billy at home. Meanwhile Joyce and Hopper go to the Hawkins Laboratory that is closed. Robin translates the Russian encoded message snooping around in the mall with Steve and Dustin.—Claudio Carvalho, Rio de Janeiro, Brazil