The Soldier needs to be fattened up for an undercover assignment(?) and Pierce orders Jack and Brock to take him home and feed him until he puts on a good twenty pounds or more. They have a month. Less maybe.

Cue them chasing the asset around with hot dogs and fried chicken, saying "yes you can do it, be a good boy and eat this", rubbing his belly and giving him pepto-bismol when he whines, and somehow being total bros about it the whole time.

Steve drops by unexpectedly at some point and they have to lock him in the closet with a bag of cheetos.