Meachum and Oliveras butt heads as the hunt for a DHS officer's killer leads Blythe's newly assembled task force all over LA… and ends with a startling revelation.

Blythe's team heads to Mexico to pull off a daring mission for a deadly cartel in exchange for information on the shipment at the port.

The team stages a high stakes prison break in an attempt to gain knowledge on the identity and whereabouts of the mysterious Volchek.

Still reeling from their loss, the team tracks down Timur Novikov's uncle, Mikhail… and hatches a plan to lure Volchek out into the open.

The team pays a visit to the Belarusian consulate in search of files that could finally reveal who Volchek is… and how far he's willing to go.

The team follows a new lead out to the California desert, where their suspect isn't going down without a fight. Meanwhile, Volchek initiates the next phase of his plan.

While the team splits up to pursue a trio of new leads, consul general Astapov's security detail attempts to persuade Volchek to abandon his plans... by force.

The team races to try and catch Volchek as he begins to deploy his weapons of mass destruction around Los Angeles.

With their leader fighting for his life and Meachum's medical condition worsening by the minute, the team finally comes face to face with the true nature of their enemy's plans as time is running out to stop him.