Buzz is impressed by rookie Flash Flemming, much to Booster's chagrin. Gargantia's ambassador Ursona Major contacts Star Command in order to join. But it turns out that there are rebels, who oppose the idea of Gargantia joining Star Command and thus possibly losing their individuality.

Mira, Booster, and XR are all nominated for the Rookie of the Year award. The three compete with each other to impress Buzz, which Zurg uses to steal a new matter transporter.

When Booster is kidnapped by the Raenoks, in order to conduct a prisoner trade for Varg (XR is sent to guard Varg, who quickly escapes and takes XR to Raenok), Buzz & Mira fly off to save him w/ a newly developed cloaking device that can render 42 and/or its crew invisible. While attempting to sneak into the Raenok prison, Mira and Buzz spot Booster's folks, who heard about their son's capture and decided to attempt to save him. This allows the invisible Mira & Buzz to get through the first line of defense, while the capture of the Munchauser's provides a distraction. When they're attempting to figure out how to get through the second line of defense, Becky and her father, the Sheriff from Roswell, arrive (having also heard the news of Booster's capture). The capture of the Roswelleans provides yet another distraction. Finally, the LGMs also decide to help, which almost allows for Mira & Buzz to free Booster (...and XR, and Booster's parents, and the Roswelleans...), but they end

Ambassador Major (from Gargantia) attempts to open Pizza Planet franchise on Gargantia, but the Militants oppose it (as usual). Buzz and Booster have to reduce themselves to their size to help out, but the Militants get their hands on the size-changing device and make themselves ""regular"" size.