Valve's Source Filmmaker platform has allowed fans to develop their own movies featuring the cast from Team Fortress 2 and more, though it'd be a challenge to find a community-made film as cool as this one introducing new content for the game.
"End of the Line" tells the story of Red and Blue, though the action within doesn't rely on typical Team Fortress 2 weaponry. Just have a watch before rushing to download the new winter clothing and accessories, a new taunt for Pyro, or a new weapon that you're likely to get your tongue stuck to just like Ralphie.
If you're a diehard fan, there's also new merch available for yourself or someone special in your life.