An airliner vanishes en route without a trace! It's the crisis that brings together, in a historic team-up for the first time ever, Street & Smith's super-star trinity: The Shadow! Doc Savage! The Avenger!  This historic cross-over is 75 years in the making, JUSTICE, INC. begins here, spawned by a horrific tragedy of death and destruction secretly orchestrated by some of the most powerful and unexpected villains in the history of the pulps! Chapter 1 (of 6): "The Time Machine!"