It's 13 years since the iconic '90s sci-fi show The X-Files ended, but now FBI agents Fox Mulder and Dana Scully are set to resume their investigations into the strange and the unknown. The new six-part season will be broadcast in January 2016, and ahead of that a new trailer has been released. Check it out below:

　　David Duchovny and Gillian Anderson will be reprising their roles, and as seen in this trailer, are joined once more by Mitch Pileggi, playing former supervisor Walter Skinner, and William B. Davis as the enigmatic villain Smoking Man.

　　In an interview for Entertainment Weekly earlier this year, Duchovny spoke about receiving the script for the new season for the first time. "I started crying reading the first page," he said. "It was just so strange to see the names on the page. It had nothing to do with the script itself. It was just like, I'd been talking about this for a long time.'

　　"I would be open to doing another cycle," he added. "I don't know that I could do a 20-episode version of this show at this point in my life, and I don't know that Gillian could. But I think everybody is open ended on what happens after this."

　　The X-Files ran for nine years, and clocked up 202 episodes between 1993 and 2002. By the time the final episode aired, it had become the longest-running consecutive sci-fi series ever on US broadcast TV. There were also two spinoff movies: 1998's The X-Files: Fight the Future, and The X-Files: I Want to Believe in 2008.

　　The first episode of the new season will premiere on January 24, 2016.