After 13 long years, Mulder and Scully are officially back.

The two FBI special agents, played by David Duchovny and Gillian Anderson, return to television this January for a six-episode “X-Files” event airing on Fox.

Ahead of the heavily anticipated premiere, “The X-Files” team released a behind-the-scenes video of the reboot. Called “The X-Files Re-Opened,” the 21-minute video features commentary from Duchovny, Anderson and creator Chris Carter.

The vid also reveals that the new series will talk about Mulder and Scully’s son, William, and possibly about the time he was conceived.

Check out the two “X-Files” trailers below for even more new footage:

Be sure to tune into Fox on Jan. 24 and 25 for the reboot’s two-night premiere, starting at 10 p.m. ET.

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