Cartoon Network Action Pack — DC Comics
Issue: #13
Grandpa Max has a secret past, and it's about to ruin his ski vacation! Can Ben save the day? Plus, the Kids Next Door!
Creators: Todd Nauck, John J. Hill, John J. Hill, Rachel Gluckstern, Mike Decarlo, Pat Brosseau, Heroic Age, Tom Warburton, Joan Hilty, Ethen Beavers, Sholly Fisch, Philip Moy
Characters: Gwen Tennyson, Numbuh Two, Numbuh Three, Numbuh Five, Numbuh One, Maxwell Tennyson, Ben 10, Numbuh Four