Written by Bob Gale and John Barber. Art by Marcelo Ferreira. Cover by Timonthy Lim. WHO IS DOC BROWN? Marty McFly thought he knew, but now even Doc himself isn't sure. The mystery of the 'Continuum Conundrum' deepens - as Marty and Jennifer's lives are thrown in upheaval again! 28 pages, full color. Cover price $3.99.