With Fifth Year dying down and only one OWL left, Lily should not be worrying about the Marauders. However, when they start bullying her old friend, she has to step in.

James just about gets on one knee to ask Rory a question. Marlene is harassed by her old friends until Remus interferes. Sirius defends his brother, but later has second thoughts.

School’s out for the summer. James apologizes to Lily for how he acted the day at the lake. Sirius is shocked that Peter is trying to give him relationship advice. MJ catches Remus and Marlene flirting, but all of the novelty between them vanishes as soon as Remus has to give her some bad news.

The Marauders meet up at James’ for a summer weekend and do their usual conspiring. Remus shows his friends a surprising letter. The Full Moon gives Sirius an idea about the Marauder’s Map, which Marlene finds when she visits the Potters.

The McKinnons try to sort through the war tragedies that have already affected them. Roan walks in on Rory so he tries to make it up to her. Sirius finally tells Mrs. Potter about running away. MJ’s dad doesn’t like the direction her life is taking. Severus makes promises to Lily.

The Gryffindors begin a lighthearted conversation about names, but the boys soon upset the girls. James "uncovers" a new approach to training for Quidditch. MJ and Rory both make arrangements to meet with surprising people. Meanwhile, Dumbledore has appointed a new Defense Against the Dark Arts professor.

Regulus and a group of Slytherins confront MJ, Sirius, and Rory. Rory isn’t hesitant to fight Regulus despite his apathy. Her anger is fueled by certain memories she has of him from various Quidditch matches.

The group puts on their costumes and heads to the Halloween Dance.

Rory learns more about Roan when he comes to watch the Ravenclaw-Gryffindor match. Lily decides not to go to the match, and instead finds herself with Sev. During the match, James is displeased with Rory's behavior. Furious, James complains to Sirius and MJ. His ranting is interrupted by a group of Slytherins.

Lily reacts to Severus’ request. MJ releases her anger against Sirius in a class duel. Afterwards, Moseley asks to see her in his office, and they discuss her choices. Regulus gives MJ a present.

The Full Moon leaves Remus worse off than usual. MJ finally speaks to Sirius.

Remus, despite his yearning to never know, must illuminate the hall and reveal the aftermath of the duel. Regulus is bothered by the fight. The Marauders spend quality time together recovering from the duel and helping each other find dates to the impending Christmas party. Marlene realizes she was a little hypocritical in the past. Severus worries that the Marauders will try to expose him as a Death Eater to Lily.

Remus suddenly finds himself a love life. Everyone gets ready to head home for the holidays.

When Sirius tells James that Snape might be dropping by for the Full Moon, James thinks it’s a good idea. When he actually sees Snape come though, James changes his mind completely and saves Snape’s life.

The Gryffindors head to the Slytherin/Ravenclaw match to watch Regulus play Seeker. While at the match, the Marauders run into their 5th roommate--who they hardly ever see. Marlene and Lily decide to skip the match, preferring to study in the library instead. Later that day, MJ finally finds herself alone with Regulus for the first time since he visited her over winter vacation.

Several disagreements, a couple unexpected hook-ups, and a duel.

The boys help Remus through the Full Moon. Afterwards, upon taking him to the Hospital Wing, they are surprised to see MJ. Sirius and Marlene talk. For quite a long while.

MJ and Sirius talk about their budding relationship, but MJ questions it later that day. Lily attends one of Slughorn's infamously boring dinner parties, but how boring can it be with a potential employer to her right and James on her left?

Remus attempts to hold up his end of the pact with Sirius, but Marlene takes the reigns of the conversation. Lily and James strategically try to keep their friends happy. Rory invites Sirius and Peter to a party, where Peter must keep his cool.

The Marauders argue about what constitutes cheating after hearing the latest in the Remus/Marlene saga. Rory proves to be a fierce friend. MJ explains her homesickness to Regulus.

Remus surprises Marlene. The girls stumble across something alarming. The boys start planning a prank. MJ finally confronts the Black brothers.

MJ is approached by the Seventh-Year girls, who pose an offer. Marlene is alone with her thoughts and a bit of mysterious parchment for a few moments before the Gryffindors burst in for a goodbye before the Easter Holidays. Rory heads to Roan's and finds herself in a nightmare.

Marlene hopes her troubles will lessen with her return to Hogwarts. Meanwhile, Lily and Sirius strike up an odd friendship on the train back.

The Captains and Seconds meet to discuss the rules of the upcoming Forest Duel. James must assemble a team, despite distractions in the form of warm weather, Trivia Night, and Lily.

The five Gryffindors face unexpected trouble in the Forbidden Forest.

The Gryffindors realize that the end of the duel doesn't also signal the end of the cnsequences.