Answer:
We then meet Nag and Nagaina, King Cobras, and they make their first attempt on Rikki's life. Soon after, Rikki defends Teddy from a snake named Karait and saves Teddy's life. That night, Rikki patrols Teddy's home. He overhears Nag and Nagaina plotting to kill Teddy's family so they can get to Rikki.