Designated Survivor (2016-) 
A low-level cabinet member is suddenly appointed President of the United States after a catastrophic attack during the State of the Union kills everyone above him in the Presidential line of succession.
Designated Survivor: The Interrogation Season 1, Episode 6
Kirkman faces challenges and questions in his attempts to restore Congress. The chief suspect is questioned about the bombing. [more inside]
Designated Survivor: The Mission Season 1, Episode 5
President Kirkman approves a bombing, then a SEAL assault, and maybe even a VP offer. [more inside]
Designated Survivor: The Enemy Season 1, Episode 4
The battle rages on. [more inside]
Designated Survivor: The Confession Season 1, Episode 3
A cyberattack hits the White House, leaving behind a video from the purported bombers. [more inside]
Designated Survivor: The First Day Season 1, Episode 2
Congress's designated survivor shows up, and she and Kirkman visit the remains of the Capitol. The Governor of Michigan decides to round up the Muslims, and to flip off the new President when he tries to stop it. The FBI finds an IED linked to Al-Sakar, "the latest offshoot of Al-Qaeda", but Agent Wells thinks it's too perfect. [more inside]
Designated Survivor: Pilot Season 1, Episode 1
A low-level Cabinet member becomes President of the United States after a catastrophic attack kills everyone above him in the Presidential line of succession.