Faster than a speeding bullet, more powerful than a locomotive, able to leap tall buildings at a single bound. Look, up in the sky, it's a bird, it's a plane, it's Superman! Kellogg's Pep, P-E-P Pep, Kellogg's Pep, the sunshine cereal presents The Adventures of Superman. Today, while Clark Kent searches frantically for Jimmy Olsen and Jack Wilson, bigoted Vincent Kirby plans a vicious smear campaign with the imprisoned boys as his unwilling tools. Hello there, gang. This is…