The upcoming series stars David Duchovny and Gillian Anderson as FBI investigators Fox Mulder and Dana Scully, with an air date set for January 24, 2016, The Hollywood Reporter said.
In the new teaser, Mulder reaches out to Scully for some support with his own investigation.
"In 2002 the investigation ceased, but my personal obsession did not," he revealed.
"Our work is the key to everything. I can't do this alone."
As previously reported, fans at New York Comic-Con will get to see the first of six episodes, 'My Struggle', on October 10 - three months before its TV debut.