In 1990, during a resurgence of interest in the franchise, Malibu Comics launched a new monthly black-and-white Planet of the Apes comic through its Adventure Comics studio. The debut issue sold 40,000 copies, a record for black-and-white comics, leading to a successful run of 24 issues over two years. The series follows Caesar's grandson and heir Alexander as he struggles to govern ape civilization. The comic's success led Malibu to publish five four-issue spinoff miniseries: Ape City, Planet of the Apes: Urchak's Folly, the Alien Nation crossover Ape Nation, Planet of the Apes: Blood of the Apes and Planet of the Apes: The Forbidden Zone. Malibu also published two one-shot comics, A Day on the Planet of the Apes and Planet of the Apes: Sins of the Fathers, a prequel story to the original film; a trade paperback collecting the first four issues of the main series, titled Monkey Planet; and reissues of stories from Marvel's earlier Apes series.
