The campaigns of three outsiders - Sen. Ted Cruz, Sen. Bernie Sanders and Donald J. Trump - are given behind-the-scenes attention on the road to the Iowa caucus. Series premiere.

Sen. Marco Rubio, Gov. Chris Christie, former Gov. Jeb Bush and Gov. John Kasich prepare for the all-important, first-in-the-nation primary in New Hampshire.

Follows the angst and drama leading up to the Iowa caucuses, with a showdown brewing between Democrats Bernie Sanders and Hillary Clinton and the GOP's first real test of outsider candidates versus the establishment.

The fourth episode goes inside the Iowa fallout and the momentum leading into New Hampshire's primary. Who's got it? Who doesn't? And how can the Clinton and Trump campaigns pick up the pace to beat back the surge of Sanders and Cruz?

From the electric jolt of New Hampshire to the hard truths coming up in South Carolina and Nevada. Trump tastes victory, Kasich picks up momentum - and Bush faces the prospect of an impending do-or-die reality.

Anxiety grows about how high the stakes are in Nevada and South Carolina.

Down to The Big Five, all eyes are on the upcoming prize: Super Tuesday.

With big wins for the front-runners on Super Tuesday the rest of candidates are reckoning with the results. But the biggest story of all might be one both Democratic and Republican establishments can agree on: how do they stop Trump?

It's make or break time for Rubio, Kasich and Sanders. As the candidates pin their hopes on Florida and Ohio, can they gather enough momentum to force a brokered convention - or will their campaigns finally run out of steam?

While Rubio gets trumped in Florida, the rest of the candidates remain cautiously optimistic. But are high hopes what they need to pull off a win and secure the nomination - or are they just delusional?

As foreign policy comes to the fore can Trump and Clinton handle the heat?

Before a showdown in Wisconsin, candidates travel the state to pursue competing agendas; Kasich, Cruz and Sanders seek to secure their positions as spoilers.

Examines the race, which has tightened significantly in the weeks, as it enters the final stage of the election with less than 60 days to go. It also examines third party candidate Governor Gary Johnson and the Allepo gaffe.

As Clinton's pneumonia and scrutiny about Trump's medical records comes to the forefront, their fitness to lead is questioned.

As Clinton and Trump prepare for their first debate, their campaigns target the swing states with an eye on Florida.

Preparations for the debate; the candidates cede the spotlight to those who cover the political news.

The fallout from the second debate and the current scandal surrounding a recently publicized audio tape.

The first real-time documentary series about an American presidential campaign returns, going behind the scenes as Hillary Clinton and Donald Trump battle it out in the final stretch to the election. Political journalists Mark Halperin, John Heilemann and media advisor Mark McKinnon pull back the curtain to take viewers inside the fiercest competition on earth - where the ultimate prize is the most powerful office in the world.