Oh my god, they're back again. 

Nick Carter, Howie Dorough, Brian Littrell, AJ McLean, and Kevin Richardson are back at it in the first trailer for the upcoming documentary about the boy band, Backstreet Boys: Show 'Em What You're Made Of.

The debut teaser arrived on Wednesday, Dec. 17, and features all five members of BSB, reunited again for their 2013 album, In a World Like This. The upcoming film follows the now-grown men on their ongoing In a World Like This Tour, and has them reflecting on the years since they were first introduced to the pop charts.

"From 1999 to about 2002, we were the biggest band in the world," begins Littrell, now a married 39-year-old father of one. As vintage footage of BSB performing to crying fans plays, his bandmate adds, "Nobody thought it was going to be as big as it was." 

"Then it just stopped," he adds, as the modern-day boybanders are shown plotting their next move. "What do you do when you're a full-blown man in a boy band?"

After their early 2000s fall from grace, the Backstreet Boys took a bit of a break. Carter, now 34, pursued a solo career while McLean, now 36, spent time in rehab to treat his substance addictions. They reformed with the 2005 release of Never Gone, but Richardson soon departed the band to "to move on with the next chapter of [his] life." BSB went on to release two albums, Unbreakable and This Is Us, before Richardson, now a married father of two, rejoined the group in 2012. 

"I had this idea to go to London just the five of us, and record and album," Carter continues in the clip as the men are shown working on the In a World Like This record. "No families, no girlfriends, just us."

The men are then shown discussing their rise with record executive Lou Pearlman, and the band's subsequent legal trouble with the imprisoned former millionaire, as Richardson notes, "$300 million he stole or was missing..." and getting back on their feet as they give it yet another go. 

Take a look at the first trailer in the video above, and catch Backstreet Boys: Show 'Em What You're Made Of on Jan. 30, 2015.