Metro City Bank was surrounded by police officers. A robber in a mask stuck his head out of the bank.
Detective Smith spoke into a bullhorn. "Come out with your hands up!"
"No chance!" the robber yelled. "And don't try to come in here. We put bombs all over the building!"
Detective Smith reached for his radio. "Send Rocket Girl—fast! Before the robbers blow up the bank!"
Roxy was at home in bed. She was sneezing. Her throat felt sore.
"Wake up, Roxy!" her mom said. "It's time for school."
"Mom, I think I'm sick," Roxy said, shivering.
Roxy's mom frowned. "Let me check your temperature." She came back with a thermometer.
"You are sick, sweetheart," she said. "No school today. I'll make you some soup."
A minute later Roxy's watch beeped.
"Hello," Roxy said in a scratchy voice.
"Rocket Girl!" Mayor Bloom said. "Robbers have taken over Metro City Bank. I need you to—"
"Ah-choo!" Roxy sneezed.
"Are you all right?" Mayor Bloom asked.
"I'm fine, Mayor," Roxy said. "It's just a cold. And the city needs me!" Roxy started to climb out of bed. But she couldn't stop shivering.
"No, I can't allow it," Mayor Bloom said. "Get some rest. I'll find another way." He ended the call. Then he pressed a button to summon his assistant.
"Call Dr. Odd, please," he said. "And hurry!"
Minutes later Mayor Bloom arrived at Dr. Odd's lab. A tiny robot named Bippo led him inside.
"I'm so glad you called, Mayor," Dr. Odd said. "I came back to Metro City to make up for my past crimes."
"Are you sure this robot of yours can help?" Mayor Bloom asked. "We have a dangerous situation at the bank."
"Yes," Dr. Odd said. "Crime Fighter Bot can do what no police officer can." He led Mayor Bloom over to a tall robot. Its chest was painted like a police badge.
"Shiny, him!" Bippo said.
Dr. Odd pressed a button, and the robot came to life. Its arm turned into a cannon. The cannon shot out a net. The net caught a dummy robot.
"Its artificial intelligence helps it fight crime," Dr. Odd said. "It can do the work of a whole police force."
"Wow," Mayor Bloom said. "Let's send it to the bank to stop the robbers."
"Don't worry, Mayor," Dr. Odd said. "Crime Fighter Bot is on its way!"