Brock used his azure power force to navigate himself and his wheelchair until he got underneath the van. Then he used his power to stop his, and the van's, rapid descent. The others stayed right with him due to Shawnacy's anti-gravity ability.
Trevor had his hand on her right elbow.
"What's our next move?" Brock yelled to them.
"Drop slowly!" Noel yelled back. "Stay together as much as..."
WHAP!
Both the Silver Scorpion and the Silver Centipede smacked into them at the exact same time.
WHAP!
And, because they held onto Noel, everyone was invulnerable, so no one got hurt.
The WHAP! did surprise them, though, and, because it did, they all acted like they weren't invulnerable.
They separated, in other words. They let go of each other.
Stupid, but, you know...
The five broke in five different directions, and four of them plummeted for Earth.