Tales From the Kryptomites Part 1 is the third webisode of Season 3 of the DC Super Hero Girls webseries.
This episode's title is a reference to the comic series Tales from the Crypt.
The webisode starts off in the Super Hero High School garage as Batgirl attempts to fix her damaged Bat-Jet. When Supergirl asks her whether she thinks she can fix it before their vehicle project is due, Batgirl replies that most of the damage will buff out, allowing her to downsize the jet. However, when Batgirl leans her hand on the jet, it collapses. Wonder Woman then tells her it is time to get to work.
Supergirl, Batgirl and Wonder Woman then proceed to work on their respective vehicles. Supergirl uses her heat-vision to meld the wings on her jet, Batgirl uses a drill to screw in a nail on her jet, and Wonder Woman wipes off dirt on her invisible motorcycle just as it reappears. Supergirl then attempts to fix the jet's wiring by connecting the aquamarine and puce wires with her heat-vision. However, this activates her jet's defence missile which flies off into the sky. Supergirl flies after it, flying in front of it before it can reach Metropolis and tries to redirect it, before it begins to target Super Hero High. Supergirl then manages to nudge the missile in a different direction with her elbow, causing it to destroy the IT office. Supergirl flies down to the burning office, as Wonder Woman and Batgirl join her, and Supergirl remarks that the Lena, new IT girl does not work on Saturdays. When she asks whether she should apologize by text, Wonder Woman answers that she believes that she should do it in-person.
Supergirl and her friends arrive at Lena's home, an abandoned factory with a For Rent sign. Meanwhile, Lena examines the Kryptonian dust she wiped off during Batnapped through a microscope, Lena remarks how weak the kryptonite crystal in her slide is, before dropping a liquid formula on it which turns it into her first krytomite. Lena takes a selfie to celebrate, just as she notices Supergirl and her friends arriving. Wonder Woman, Batgirl and Supergirl enter the building, calling for Lena, just as she comes up the nearby stairs. Supergirl apologize to Lena for destroying her IT office, but Lena quickly brushes it off, forgiving her. Down in Lena's lab, the kryptomite comes to life and begins wrecking the lab.
Lena quickly dispatches the girls through the door, with Supergirl believing she took the apology well. As they begin to leave, the For Rent sign on the building falls off, revealing the LexCorp logo. Upon returning to her lab, Lena finds it in a mess due to the Kryptomite. As the girls approach the Batjet, the Kryptomite appears from behind a nearby barrel, and begins to follow them. Suddenly, Supergirl begins to feel weak and collapses as Wonder Woman notices the living kryptonite approaching. Batgirl ensnares it with her Bat-rope, only for it to cut it and free itself.
The kryptomite then charges at the girls, as Wonder Woman grabs a nearby light pole and uses ot to crush the Kryptomite, causing it to shatter. After Wonder Woman puts the pole back, the girls then help Supergirl return to school. While their backs are turned, several kryptomites form from the shattered fragments.