With this issue, the US editions of this series jump ahead two issues worth of content. This issue has the same content as #23 [UK]. The skipped content can be found in #21 [UK] and #22 [UK].
This means that the last two chapters of the previous Dan Dare storyline were not published in the US. Captions at the beginning of both features summarize the missing episodes.
This issue starts a new story. Part 1 of 5
Part 8 of 9