Whilst on a train with his two small children ex-soldier David Budd, a veteran of Afghanistan, successfully thwarts a suicide bomber. Arriving in London he is appointed as bodyguard to Home Secretary Julia Montague, who has a brutally direct anti-terror policy. She is grateful to David for his action and opens up about herself but David's domestic life is not ideal and Chanel, a former employee whom Julia has sacked, is out for revenge. Meanwhile David has a secret that he is keeping from his charge. Written by don @ minifie-1

With the UK terror threat level raised to severe, Home Secretary Montague holds secret meetings with the Director General of the Security Service, side-stepping her own Minister for Counter Terrorism and the Police. Specialist Protection Officer Budd is on high alert as Secretary Montague's hard-line stance on national security propels her further into the public eye. With his home life becoming more difficult, it appears as if Budd's natural animosity towards the Home Secretary is beginning to fade. Written by Anonymous

As the capital shudders in the wake of the recent attacks, Specialist Protection Officer PS David Budd is under more pressure than ever to keep the Home Secretary Julia Montague safe.

The events of the night before play out for the Home Secretary Julia Montague and her Specialist Protection Officer David Budd.

Police now dismiss Tahir as the bomber who killed Julia but, identifying Andy as the failed sniper, suspect a connection with the real killer. David links Longcross to Nadia's terrorist husband and finds out that Julia was aware of the prime minister's past indiscretions, suggesting a government conspiracy to silence her, led by her ex-husband, chief whip Penhaligon. He is taken off the case but is approached, seemingly by accident, by Julia's sacked PR Chanel before making an important discovery in Julia's flat. Written by don @ minifie-1

Principal Protection Officer David Budd (Richard Madden) has made a major breakthrough in the investigation into the attack on the Home Secretary, but his enquiries have put him in mortal danger. With the clock ticking and no-one left who believes him, David attempts to prove his innocence. But the evidence against him begins to stack up. Written by DODO