In my experience this is nearly ALWAYS overstimulation. Best tips - get them in a darkened room, white noise, swaddling (even if they hate it) and lots and lots of patience. It might take and hour or two but eventually they will calm.
5 Tips to Soothe a Crying or Colicky Baby & Two Boys One Pup How to sooth a baby with excessive crying or colic. Gerber& Soothe has worked wonders for when we need to calm or twins. It contains probiotics, similar to what is found in breastmilk.
9 Tips to Help Your Baby Sleep Through the Night [Infographic