"Forge" profiles exceptional artists who are working in what may be the only tangible example of "alchemy" we have - the forging of metal magically transformed by fire. Follow young Chloe Darke as she begins her career as a silversmith at Old Newbury Crafters; Iraqi war veterans Tom Pullin and Jeremiah Holland as they turn to art as an antidote to the harsh realities of war; and Albert Paley, master metal sculptor, who uses knowledge from his 50-year career to build monumental artworks for New York City's Park Avenue.