"The Leftovers" pilot episode aired on Sunday and if you missed HBO's new original series, you can stream it online. Yahoo Screen has a free stream of "The Leftovers" season premiere,

According to HBO's official synopsis for "The Leftovers" pilot, "Three years after millions of people – some 2% of the world’s population – vanished into thin air, residents of Mapleton, New York weigh the pros and cons of a “Heroes Day” tribute to the local “Departed.” Attempting to maintain a sense of normalcy in his strained community, police chief Kevin Garvey (Theroux) faces additional challenges at home with daughter Jill (Margaret Qualley), who’s lost in a cloud of apathy with her friend Aimee (Emily Meade); and son Tom (Chris Zylka), who has gravitated to a cult led by the charismatic Holy Wayne (Paterson Joseph). Also of concern is a silent, white-clad group of chain-smoking men and women called the Guilty Remnant, who team up in pairs to stake out people and places around town. As tension in Mapleton escalates, the lives of Laurie (Brenneman), an unexpected member of the Guilty Remnant, and Meg (Tyler), a recently engaged young woman, converge."

This is not the first time HBO has made a show available online after its Sunday debut. The first episode of "Silicon Valley" was made available on YouTube after it premiere while AMC has also used a free online stream of "Halt and Catch Fire" to build buzz.

The first episode lives up to the high expectations for "The Leftovers." "Lost" co-creator Damon Lindelof and Tom Perotta, the author of the book the series is based on, have created a tense and mysterious hour of drama. There are few answers within the first episode but the show features a great cast and a great central premise of the Sudden Departure.

After watching "The Leftovers" season premiere online, you can read the recap here and learn more about the Guilty Remnant here.

"The Leftovers" airs on HBO on Sundays at 10 p.m. EDT.