Up above the hole in the ground, Ira is speaking to her watch:
"Are you certain?"
"It's not that I don't trust you. It's just that you said we didn't do this until after..."
"But this reduces our advantage-"
Jenn seriously looks like she's considering it. "I don't know this gun well enough."
Instead, she goes and knocks on the bathroom door.
"We're nearly done here," Lainey says. "And you shouldn't be running, B."
"I'm fine!" Bina protests. "And uhhhh that sounds like all our exits..."
Except the watch. Or another time machine.
"You guys got a map of the area? Might be able to figure something out."
Pause. "Yeah, I've got one I think. Dad gave me a street map? It'll take me a moment to dig it up."
"...There comes a point where we'd be putting - everyone - at risk, and limiting our options to just the watch, assuming I can program it while being attacked..."
"I wouldn't want to bet on being able to buy the time."
How close are the sounds?
"Crap. Uh - " She shakes her head. "I think we need to use the watch, or some other machine. And take Lainey. I'm not leaving her."
"I'm still not fast with the watch - the n-continuous one we grabbed is basically point and click, right?"
"Right, I'll get that - "
And she pulls off her backpack, takes a lunchbox out of it, and flips the box open - "We should maybe hide this, it's not coming with us - "
Inside the box is a bunch of science fiction bullshit Bina suspects works on If You Really Believe, but has been trying to learn the engineering specs for. A dial puts their time at a few seconds ago, so they'll catch up to their PTP quickly and then even if Ira finds the box she can't snap them back to here, three more dials lets her set location to a nearby park...
"Back of the kitchen cupboard? The one with all the cleaning supplies?"