Veronica is in true form from the moment she and boyfriend, Logan, along with close friends,Wallace and Mac, set foot on the campus of Hearst College. Wallace enlists Veronica's help when his new roommate, Piz, has all his belongings stolen. While working on Piz's case, Veronica learns that the campus serial rapist has struck again. Meanwhile, Keith runs into trouble while transporting a recently released convict through the desert to reunite him with Kendall.
Veronica is hired by the campus newspaper to do an undercover expose on the Zeta Theta sorority sisters during rush week to investigate Parker's rape. Throughout the investigation, Veronica realizes that everything is not exactly what as seems in the sorority house. Meanwhile, Logan and Wallace participate in a prisoner/guard role-playing experiment for their Sociology class, which challenges them psychologically.
Veronica is hired by by a Hearst football player to help him find his stolen playbook before the next practice, or risk losing his scholarship. As a result of the expose Veronica wrote about the campus sorority, Dean O'Dell threatens to expel her if she doesn't reveal one of her sources. Logan tells Veronica his schedule is keeping them apart, but she realizes he has been spending time participating in illegal gambling. Meanwhile, Veronica convinces Keith to hire Weevil to assist with office work at Mars Investigations.
When Logan is informed that his inheritance is running low, he become suspicious and enlists Veronica's help to sort through his financial records. Veronica uncovers that large sums of money have been going to a man named Charlie Stone. Meanwhile, Keith is hired by Harmony to investigate her cheating husband.
It's Halloween at Hearst and while Veronica is looking for Logan at the underground campus casino, the place is robbed and the thieves take Veronica's necklace, given to her by Lilly Kane. Meanwhile, Dean O'Dell and his wife Mindy seek Keith's help in tracking down Steve, the biological father of Mindy's son, who is deathly ill. Wallace, distracted by a new group of friends, struggles to pass his Mechanical Engineering class.
Veronica is accused of plagiarizing her paper for Professor Landry's criminology class. In trying to clear herself, she discovers that her mentor is not who she thought he was. Wallace is pardoned by Dean O'Dell for cheating on his exam, but makes a decision that could affect his college career. Piz invites Veronica to a night of bowling and she decides to bring Logan and Parker, unaware Piz wanted the evening to be more of a date.
Veronica is disappointed in Keith for his ongoing relationship with his client, Harmony, who invites him on a romantic weekend getaway. When Veronica retreats to Wallace and Piz's dorm room for some quiet time, Logan seeks her help in clearing Mercer of the rape charges, but refuses to give her his alibi.
Selma Rose, the wealthy grand-daughter of the founder of Hearst College and a member of the Hearst College Board of Trustees, mysteriously disappears the night before she is to cast a swing vote that will determine the fate of the Greek system on campus. Keith, with Veronica's help, is hired by Dean O'Dell to investigate the disappearance. Meanwhile, Veronica has been rehired as a photographer at the Hearst Free Press, but she and Logan fight over her involvement in the rape case.
Dean O'Dell reinstates the Greek system on campus and, determined to solve the campus rape case, Veronica, along with Mac, Wallace and Piz, attends a party armed with coasters designed to test for drugs in the drinks of her peers. Meanwhile, Dean O'Dell hires Keith to investigate whether or not his wife is cheating on him.
Mac convinces Veronica to go undercover with her as animal rights activists to rescue a kidnapped monkey as a way of forgetting her breakup with Logan. Meanwhile, Mindy O'Dell asks Keith to investigate her husband's suspicious suicide.
After learning Logan had slept with Madison, the girl Veronica holds responsible for her rape, Veronica tries to deal with it, even if that means NO SLEEP. Meanwhile, Tim Foyle's girlfriend asks Veronica for help to find who gave her a pill that aborted her fetus. Also, Veronica asks Weevil for a favor- a one that might just take him back to his old days.
The basketball coach is found dead after an argument with his son, Josh. The Coach's wife goes to Keith's office looking for help. Veronica becomes involved in the investigation while her father continues the Dean O'Dell murder investigation. Josh escapes from jail, and Veronica is arrested for complicity in his escape.
Veronica is let out of jail, while Mac, Parker, Logan, and Bronson go on Valentine's Day Scavenger Hunt. Josh decides to flee the country after learning the truth about his dad, and Lamb goes after Steve at Mindy's house.
Veronica is hired to investigate what seems to be a hate crime. Meanwhile, Keith investigates local bars serving alcohol to students under 21, and faces corruption inside the police department. Logan invites Veronica to a party he's throwing for Parker's birthday, and Wallace encourages Piz to "go all in" and reveal his feelings to Veronica once and for all.
Washed-up rock star Desmond Fellows arrives at Hearst to play a charity concert for the campus radio station to find that his backing tapes have disappeared. With his job and the survival of the radio station at stake, Piz calls Veronica despite their recent post-kiss awkwardness. Piz and Veronica are tasked with tracking down the tapes and babysitting a drunk, irresponsible, and depressed Desmond Fellows. Meanwhile, a new and surprising contender emerges to challenge Keith in the race for Sheriff.
Veronica is officially a private investigator - Veronica passes her exam to be an official Private Investigator, while Piz lands an interview with Apollo Bukenya, an African student at Hearst who wrote a book about his years as an orphan child-soldier in Uganda's rebel army. Veronica is hired by an African man, Kizza, to help prove that he is Apollo's father, but her investigation leads to information that might expose Apollo's story as a fake. Meanwhile, as the election for Sheriff nears, Keith is faced with a crime spree in Neptune. Parker comes to Veronica for ...
Veronica's sex tape makes it to the internet. Weevil is arrested for selling fake debit cards to Hearst students but claims he is being framed because of his criminal background, so he asks Veronica to clear his name. On Piz's radio show, Keith debates Vinnie about the upcoming election, while a tipsy Dick apologizes to Mac for the way he treated her in the past.
Veronica discovers the origin of her sex tape - Furious that Logan attacked Piz, Veronica tells Logan she wants nothing to do with him. Parker confronts Logan about still having feelings for Veronica, while Piz assures Veronica that he had nothing to do with the sex tape. Veronica, with Weevil's help, investigates how the tape originated and discovers a person from her past is linked to The Castle and pays them a visit. With the re-election campaign nearing, Keith steps in to protect Veronica.