Oggy, The Lord of Lightning is the twenty-ninth episode of Season 5 and the 298th episode overall. It takes place in Viking Age.
Oggy's Viking Village asks Thor, the Lord of Thunder, to protect the village from monsters. Since Thor is very powerful, it is easy for him to get rid of the monsters. However, the great Thor is afraid of cockroaches, and it is up to Oggy to save the day!