After getting stonewalled by Cat in his quest to track down a suspected beast, Gabe enlists Vincent's help, but Vincent quickly takes matters into his own hands. Unfortunately, the beast has an advantage over Vincent that requires Cat's help, in addition to the help of someone else who opens up old wounds from Vincent's past.—Anonymous
FBI agent Bob Reynolds uses Muirfuild beast Eddie Long to eliminate people by arson, causing a terrifying wave of fires. Realizing it best takes a beast to beat one, Gabe seeks Vincent's help. They and Cat work with the fire department investigators, the junior of which triggers Vince's memory: it's Aaron Keller, the son of his killed big brother William, whose temper and zeal put him in great danger.—KGF Vissers