An anonymous call puts Detective Sergeant June Lenker in the path of the formidable Daniel Hegarty.

Convinced there's a link between the emergency calls, June sets out to prove a theory—but Hegarty stays one step ahead.

A horrific incident lands June on Hegarty's team, giving her a way to win his trust while secretly digging into the Errol Mathis case.

Pressure mounts on June from all sides as she makes a breakthrough in Errol's case.

June's personal life suffers collateral damage when her son is targeted.

A shocking revelation compels Hegarty to find his daughter. June uncovers a game-changing piece of evidence.

The events leading up to Errol's 2011 arrest reveal a hidden history.

A wave of public outrage pushes Hegarty and June to work together before it's too late.