All hell breaks loose in New York City when masked assailants crash the President's Daughters Birthday Party.

Commander Lowe, Head of a Special Ops navy seal unit is called off leave urgently to assist in the rescue of Alice Reynolds.

The Alice Reynolds kidnapping and underground carpark siege escalates.

Lowe comes closer to completing his mission but Holt has a plan B.

The Aftermath of the St Patricks Day siege.

The White house is in lockdown after 2 unrelated incidents close to the grounds cause suspicion.

After threatening Chief of Staff Andrew Whitmore, a personal secret reveals Holt's motivation.