"Chicago Fire" season 3, episode 3 airs tonight - find out where to watch a free live stream online via NBC live streaming here tonight! In this episode, it's the firefighters who will need rescuing.

If you can't make it to your TV tonight to catch "Chicago Fire" season 3, episode 3 click here! You can also watch an online free stream on NBC.com, where the full episode will be posted after the show airs.

The synopsis for episode 3, titled "Just Drive the Truck," reads: "A crash involving fire trucks from Firehouse 51 and the Austin firehouse results in drama and blame-shifting. Elsewhere, Boden makes a plan to get Dawson her badge; Mills deals with his past and his future; and the Molly's gang have trouble with their new food truck."

According to Cartermatt, spoilers reveal that the lives of the Firehouse 51 crew will significantly change in tonight's episode, which starts with Firehouse 51 responding to a fire alert - but then they spot another fire truck heading to the same emergency. The other truck is from the Austin Firehouse and driven by Welch (played by Kenny Johnson). Joe Cruz (played by Joe Minoso) wants to be the first truck on the scene. The two fire trucks are soon racing on the streets.

Matthew Casey (played by Jesse Spencer) told Cruz he's not "interested in a pissing contest," International Business Time reports. Cruz ignores Casey, who warns him to "forget it. Just drive the truck."

The twist in tonight's episode is that the firefighters are forced to save themselves after a fire truck wreck leads to some pretty significant injuries, Cartermatt reports.

"Chicago Fire" season 3, episode 3 airs tonight, Tuesday, October 7 at 10pm on NBC.