With Aaron Echolls facing trial for Lilly's murder, the previously accused Abel Koontz appears to enlist Veronica's help in finding his missing daughter Amelia, leading to a confrontation with Kane Software's head of security. Meanwhile, Logan is arrested

Veronica and Duncan discover that the still-comatose Meg had been babysitting an abused child, leading Veronica to take on an unfamiliar role as a babysitter to determine the kid's identity. Meanwhile, Kendall continues her affair with Logan as her stepso

When the profits from the Neptune High Winter Carnival go missing, Veronica finds herself defending Jackie from the condemning teachers and students. Meanwhile, Keith meets with her father, Terrence Cook, after he is accused of playing a role in the bus crash, and Logan initiates a new relationship while Beaver continues an old one.

When a private website for Neptune High's gay students is hacked, and the members blackmailed, Veronica finds it difficult to track down the culprit when the victims want to remain anonymous. Meanwhile, Hannah finds out Logan's true intentions, and Keith believes he has found an alibi for Terrence.

Wallace's new girlfriend Jane enlists Veronica's help when her older sister Heidi appears to be a "runaway bride," but the clues suggest something possibly more disturbing happened on the way to the altar. Meanwhile, Keith and Veronica decide that they have no choice but to go to Sheriff Lamb with the evidence they've uncovered about the bus crash. Later, Kendall has a tempting offer for Aaron Echolls.

While accompanying Wallace to Hearst College, she runs into her ex, Troy Vandergraff, who enlists her help when he is accused of date rape. Meanwhile, Keith helps Cliff with a personal problem involving a prostitute, and Logan makes a decision regarding his relationship with Hannah.