The cover to Newton Comics' Planet of the Apes #9 originally appeared on Marvel's Planet of the Apes #7.
The contents are as follows:
Beneath the Planet of the Apes [Part 1]
Beneath the Planet of the Apes Part Two: Enslaved!
Both stories originally appeared in Planet of the Apes #7.
Beneath the Planet of the Apes [Part 1] is incomplete. Only 19 of the 20 pages are reprinted in the Newton edition - the last page, on page 26 of Marvel's Planet of the Apes #7 is omitted.
Beneath the Planet of the Apes Part Two: Enslaved! is also incomplete. Only the first 7 pages are reprinted. It is continued in the next issue.
This issue contains a Ghost Rider poster and a swap card featuring the cover to Newton's The Incredible Hulk #2. It is numbered Series A No. 2.
As per the previous issues in the series, this issue does not have a cover date. The contest in this issue ends 17 November 1975. This suggests a publication date of October 1975. The next issue is cover-dated October 1975.