It's Ruby Rescue's first day as the new firefighting drone of Drone City. Sirens jump her into shock as she receives an urgent message: There is a fire at the Old Library! When she arrives, she questions whether she was meant to be a firefighting drone and is scared to move closer to the raging fire. Mr. Will, her inventor, tells her that she is made of tungsten steel, he made her strong! She still can't manage to go in. Nicole Patrol uses her thermal camera and suddenly sees that a child is trapped in the library! Mr. Will starts to run toward the building, but Ruby stops him-with the help of Señor Secure-and races ahead to rescue the child.

Ruby becomes the fiercest firefighting drone in Drone City trains new firefighting drones how to be strong and courageous, especially when they are scared.

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