As Nikki and Mike return from their honeymoon and Pascal gets her freedom, the team is called in to investigate when five members of a college rowing team disappear in the middle of a lake.

Nikki vanishes without a trace. The MPU team uncovers that Raina, a convict Nikki once arrested, has been released from prison and is seeking revenge.

A local muralist goes missing after painting a provocative piece on a local rooftop.

An Army Lieutenant's kidnapping leads MPU to investigate a Major she reported for harassment. The case reveals her marriage troubles and connects to illegal weapons trading.

A psychiatric patient disappears with a letter from Sidney. Mike and Jason rush to locate her before she harms herself.

A kidnapped playwright received threats to close a theater with a tragic fire history, or face death by burning. Jason tasks Wayne with discovering the father of Sidney's baby.

A woman disappears during ring shopping. Her boyfriend thinks his sick father could be stalking her. Jason conflicts with ex-colleague Bennett from Homicide as MPU investigates. Wayne seeks Jason's help to join MPU.

A customs broker who disappeared turns out to be working as an FBI informant.

A brewery foreman is kidnapped after arguing with his CEO over safety violations.

Teens heading to prom in a limo are hijacked.