No wrong answers here…
I will start a witch a lyric. Use is as a line in the verse, chorus, bridge, whatever you like. Provide as much or as little as you can come up with. Collaborate with others to finish the song, or run with it on your own. Have fun!
Lyric…
“Racing through the wreckage, we’ll never back down from the fight.”
Doesn’t have to be the opening line. Do what you like with it 
OK, go!