An American tries to revolutionize the image of London's police force; an outbreak of violence erupts.

A private security firm calls for assistance at a Youth Offenders Institution riot, giving Commissioner Richard Miller ideal opportunity to highlight the force's opposition to the transfer of essential services from the public to the private sector.

Liz presents her vision for the force's own news channel that will rival established outlets and promote transparency.

A bomb threat to the Thameside Convention Center sends all units into motion; a journalist has a damaging story ready to run.

Liz faces incrimination over her relationship with the Commissioner; Assistant Commissioner Franklin takes the reins on a search for the bomber.

Banjo, Warwick, Tony and Robbie corroborate their stories before a police investigation; Liz finds an opportunity to propel a new candidate for the commissioner's seat.