Ambush
The sisters shed their packs and approach Chris, sizing up the load.
OOC: Between them, they can lift around 450 lb.; tipping Chris onto his heels and dragging, or (carefully!) lowering him onto his back to slide, they ought to able to move a good bit more than that. His weight will necessarily include his armor, however, as getting it off him when he's frozen would require dismantling the armor.