Ep. 4: Dr. Go's Robots Big Sam and Little Sam Face a Self-Destruct Crisis
Aired on October 23, 1999

4
Dr. Go builds two robots named Big Sam and Little Sam. During the process, he accidentally triggers a self-destruct bomb inside Big Sam and becomes trapped within the machine. Kuro and Mi must cooperate to deactivate the explosive device and rescue the doctor. By the time they manage to stop the bomb and save him, Dr. Go has already escaped the situation on his own. The episode focuses on the urgent teamwork required to handle the malfunctioning robot and the accidental danger posed by the self-destruct mechanism.
Episodes
- Ep. 1 · Kuro escapes Dr. Go's lab after breaking his control chip to return home.
- Ep. 2 · Kuro and owners attend store contest that is actually Dr. Go's robot cat trap
- Ep. 3 · Dr Go's chip enables Mi to manipulate metal until he becomes a car Kuro must pursue
- Ep. 4 · Dr. Go's Robots Big Sam and Little Sam Face a Self-Destruct Crisis
- Ep. 5 · Mi disguises as a dog to woo a neighbor, prompting Go to build a robot girlfriend named Hirosue.
- Ep. 6 · Romeo kidnaps Mi while Kuro and Dr. Go pursue them toward the South Pole
- Ep. 7 · Romeo traps owners and Dr Go in a bomb dome, forcing Kuro and Mi to hunt him down with Suzuki's help.
- Ep. 8 · Kuro joins Suzuki's class field trip, causing trouble with Mi after a fight.