The "Revolution" episode "Sex and Drugs" opens with the team stealing a horse-drawn wagon to transport an injured Nora. The wound in her abdomen has become infected, and her condition is pretty bad. Despite Aaron's assurance that everything will be OK, Charlie fears the worst for Nora.
Miles brings Charlie, Aaron, and the injured Nora to the mansion of a man named Drexel, who supplies half the Monroe Republic with heroin from his poppy fields. Or at least, he did until his fields were burned by the neighboring O'Halloran family. Miles wouldn't call him a friend, but Drexel should have a doctor that can treat Nora. When they arrive, Drexel gets Miles down on his knees and puts a gun to his head. He pulls the trigger, but nothing happens. Drexel appears to be a bit high, and the gunplay is his idea of a joke. He does take everyone's weapons before they enter his mansion, however.
Drexel's doctor is doing his best with what he has. The doc recognizes that Nora is in septic shock and sets up a blood transfusion from Miles to Nora. The doc is also growing his own penicillin from moldy bread. Even with this advanced level of post-blackout medicine, her chance of survival is only 50/50.
The group gets ready to leave, but Drexel won't allow it. Drexel knew Miles when Miles was still a general in the militia. Back then, Miles kept the competition from bugging Drexel: When Miles quit, things got bad for Drexel. Drexel offers an ultimatum: Charlie needs to infiltrate the ranks of Drexel's competitors, the O'Hallorans. If she fails to take them out, then Drexel will kill Charlie's friends. But if Charlie is successful, her chances of making it out alive are very, very low.
Charlie makes her way to the Ohio State campus where the O'Hallorans are holed up. She makes it past the guards and into Bill O'Halloran's room, but Miles stops her before she can kill Bill. Back at the Drexel compound, Drex takes his revenge on Aaron and Nora. With Miles escaped, Aaron and Nora must now shoot each other for Drex's amusement.
Aaron, in a surprise move, tricks Drexel by shooting himself. When Drexel comes to look at Aaron's body, Aaron pops up and kills Drexel. While it appeared that Aaron shot himself in the chest, a metal flask in his pocket absorbed most of the impact and kept the bullet from breaking the skin. Aaron has clearly come a long way from the man he was just months after the blackout; he'd left his wife because he felt like he couldn't protect her.
Meanwhile, Danny is introduced to General Monroe and is then taken to a park bench, where he is allowed to reunite with his mother. They share a tearful reunion, but the days to come will likely be filled with painful tears, not happy ones.