Although the script for "Dangerous Rendezvous" allotted four minutes of the 25-minute running time for this old material, the flashback in the finished episode – in which Colonel White recalls humanity's disastrous first contact with the Mysterons – runs for about two minutes.
In the context of the script for "Dangerous Rendezvous," only four minutes out of its total 25-minute runtime was allocated to this outdated material. In contrast, the flashback segment in the completed episode, which features Colonel White recalling humanity's disastrous first encounter with the Mysterons, lasts around two minutes.