The miniseries from 2000 that first united the best-known heroes from two very different universes is back in a single issue collection featuring SUPERMAN/BUGS BUNNY #1-4! All the Looney Tunes are making their way into the DC Universe thanks to Mr. Mxyzptlk and the Do-Do-and only Superman stands a chance of keeping the universes apart...with the help of a certain wascally wabbit!