Some like it hot. The Mind Flayer does not. Eleven is worried that there is something wrong with Billy. Max says wrong is Billy's default setting, but El can't get what happened out of her mind. She closed the gate. There should not be any monsters left in Hawkins. Something still seems off. As dawn breaks Lucas is calling a code red. Maybe Eleven is right. Strange things continue in this town.

At Scoops Ahoy the code has been cracked and a plan is forming. The doors are too well guarded. There has to be another way in. Robin buys a copy of the Star Court blueprints from the city. The plan is to crawl through the vents. Despite his lack of collar bones Dustin cannot fit in the small space. As luck would have it, everyone's favorite little sister is at the counter seeking free samples. They tell Erica the plan to defeat the evil Russians. The sassy little girl tells them that she will not agree to the plan until she is told what benefits she will gain by participating.

The group minus Dustin has responded to the code red. They must come up with a way to corner Billy. Will says the Monster is back and will be looking for a new host. How will they know if the Mind Flayer is now controlling Billy? They head off to the pool to observe. Nothing seems too out of place, though Billy is shielded from the sun and sipping a slushy. Heat was used to drive the Monster out of Will. It is time to subject Billy to the Sauna test.

Nancy and Jonathan crossed a line. They were summer interns at the Hawkins Post, not official reporters. Tom is very upset with this turn of events. Nancy and Jonathan are fired on the spot. After how she was treated by her coworkers, Nancy just wants to be right. She didn't think of the ramifications of what losing a summer job would mean for the Beyer's household. Tom doesn't look so good. I wonder what is wrong with him.

Hopper is on the case of the mysterious motorcycle man. He storms into the Mayor's office and pressures him for details. At his mansion Larry unlocks a safe that contains a number of deeds for various pieces of land. After some more coaxing the Mayor reveals that all of these deeds represent land bought by the owners of Star Court. What are they developing now? Does it all tie back to the Russians?

It is closing time at the pool. Two operations are taking place across town from each other. Mike is using a walkie talkie to lure Billy to the sauna. Back at Star Court Erica enters the vent for "operation child endangerment". As things heat up at the pool. Billy is begging Max to let him out. Is this the man underneath the Monster? They don't have time to ponder this thought as Will feels the Mind Flayer activate. A battle of strength and will begins between Eleven and Billy. Back at the Mall Erica is able to open the door allowing her team to finally investigate the boxes. They certainly do not contain Chinese food. Inside are tubes of what looks like green lightning bugs swirling in formation. Are these another vessel set to spread the affliction across the whole town or farther? Billy gains the upper hand on Eleven for a moment, but in a last burst of power she tosses him through a brick wall.

Dustin and his team work to get out of the secret room. The buttons are not responding. Suddenly the secret room that turns out to be an elevator begins to plummet. Across town Eleven is completely drained. The kids might have won this battle but the war is on. The man that controls the Newspaper in Hawkins is under the influence of the Monster and he is not alone. The Mind Flayer retreated but is not defeated. Keep your eyes open for all things strange.