"Dragon Ball Super" episode 5 is entitled "A Battle on Kai's Planet: Goku vs. God of Destruction Beerus."
Last week's "Dragon Ball Super" episode 4 featured Emperor Pilaf, Mai and Shu's first appearance in the series. During the last part of the episode, King Kai was shown ushering Goku inside his house since Beerus, the God of Destruction, and Whis were on his way to King Kai's planet.
This week's episode showed Beerus and Whis arriving in King Kai's planet to inquire about the "Super Saiyan God." In "Dragon Ball Super" episode 2, Beerus talked about his visions during his 39-year sleep of a "Super Saiyan God" existing somewhere in the universe. This led him and Whis to a journey through the universe to find this entity and defeat him.
The duo arrived at King Kai's planet as Goku hides in the house. According to Attack of the Fanboy, Gregory and Goku share a funny moment as Gregory tries to calm the Super Saiyan down so that they will not be discovered.
As King Kai tries to distract Beerus while Goku is hiding, the God of Destruction announced that he knows that the Saiyan is there. King Kai summoned Goku who asks for a fight with Beerus as he powers up to Super Saiyan.
Even as Goku turned to Super Saiyan 2, he was still no match for Beerus who was able to dodge his every move. The Saiyan attempted to use his Kamehameha Wave but changed his mind and charged at the God of Destruction instead.
Eventually, Goku transformed to Super Saiyan 3 in this "Dragon Ball Super" episode. Beerus then goes to block all of Goku's attacks rather than just dodging it. Goku even managed to fire a Kamehameha at Beerus but it failed with the God of Destruction being able to block it. The fight ended with Beerus flicking Goku on the head and knocking him to the ground.
Beerus and Whis then head off towards Earth where they might finally be able to battle with the "Super Saiyan God."
