Martin Mystère, the "Detective of the Impossible", which to this day is investigating puzzles which the official science is unable to explain; Docteur Mystère, the bold adventurer who straightens wrongs nineteenth-century Europe; Mystery of the 22 th century, the extraordinary robot who possesses the personality and memories of Martin today. Three generations of heroes separated by barriers of time, but committed themselves to face the same threat: a temporal anomaly that spans the centuries and which may affect the fabric of the universe!
Mystery of the 22th century, or robot MM is set in same time-universe as Nathan Never, which he already met in couple of adventures.