Blastoff!

It's a bit hard to tell from the audio, but Lee is counting down from 10 and Clara is chiming in with something resembling numbers (about every other one is "do!"), and then they both say "BLASTOFF" before taking off down the driveway.




Sometimes Lee pushes Clara, sometimes the other way around, and sometimes when Lee doesn't want to participate, Clara attempts to push an empty car, which usually ends up off the side of the driveway among the plants.