A terrorist group threaten to detonate a dirty bomb in Washington DC.
The FBI is brought in to consult on a botched DEA raid, but when Abbott's former boss tries to blackmail Abbott into keeping the agency's missteps quiet, he is forced to choose between his career and morals.
Days before a corruption report on the NYPD is revealed, the head investigator is gunned down; detectives look into the death of a taxi driver.
Veronica discovers the person responsible for the bus crash, endangering her life in the process. Keith asks Veronica for her help in the Woody investigation.
Veronica is haunted by dreams in which she is confronted by students killed in the bus crash. Logan and Weevil join forces for a physics project that could help Veronica.