From Kate and Jim McMullan, the popular creators of I Stink! and I'm Dirty!--now a streaming animated series--comes a raucous tribute to a tireless harbor hero. This time a tugboat proves that even the smallest of us can be MIGHTY!When big ships get to the harbor, they need me! 'Cause I'm MIGHTY! And I can nudge, bump, butt, shove, ram, push, and pull 'em in. You think this tug's too small to pull in ships twenty times his size? Think again! This guy is 100% MIGHTY!