As per Max Allan Collins's co-author's note, this story is set in the mid 1960s, which was when Mickey Spillane began it. Facing an impending deadline, Spillane put the manuscript of The Big Bang aside, and substituted another Hammer novel, The Twisted Thing, which he had completed many years before. He later gave he manuscript to Collins for safekeeping, a sound decision, considering that a few weeks later, Spillane's home was destroyed by Hurricane Hugo.
It also proved a sound decision in that The Big Bang, as lovingly completed by Collins, feels like vintage Spillane, and, more importantly, vintage Mike Hammer. Once again, Hammer is on an unrelenting quest to right a wrong (here, seeking the masterminds behind a massive shipment of heroin heading towards New York City), not caring what he has to do, or the dangers he has to face, to do it. Back also are his classic supporting cast, consisting of his partner, the luscious Velda, long suffering police captain Pat Chambers, and a bevy of tiresome hoods and dangerous dames. Combine that with Spillane's unique way with words, and his tremendous, ultraviolent action set pieces, and you have a book guaranteed to transport you into another world for a few enjoyable hours.
As many of the previous customer reviews emphasize, this book is sure to please long time Hammer fans. But, it also represents a good introduction for readers totally unfamiliar with Spillane's canon, as it contains all the classic elements that made Spillane so readable. Start with this, or, better yet, his 1947 masterpiece I, The Jury, and you'll be hooked, ready to seek out and devour the rest of the Hammer books by Mystery Writers of America Grand Master Spillane.