I've been turning this scene from 6.03 in my head like a rotisserie chicken so much it's caught on fire at this point.
Mike just spent minutes unscrewing the floorboards of the truck, pulling up each individual screws, essentially exhuming the man they buried under there. And for a moment Nacho just lies there with his eyes closed, a still body on a metal slab, and the hand Mike offers him wavers ever so slightly before Nacho reaches out and holds on tightly, letting himself be pulled out of his temporary coffin.
I might be reading too much into this scene but it's sickening how Mike manages to open a coffin after it's been nailed shut and free the young man inside, only to batter him and send him out for slaughter a few hours later. There's something cruelly ironic about how Mike could never save the boys whom he cares for, how even with all his expertise, even when he has seemingly resurrected a son from the dead, his reward is getting to watch the kid die.