Bjorn returns to Kattegat to learn that an attack will take place during the next full moon; Ivar must decide if he can place his trust in a former enemy on the battlefield.
![Vikings S5](https://hodsonsbarandgrill.com/wp-content/uploads/2017/12/oktTNFM8PzdseiK1X0E0XhB6LvP-60x90.jpg)
Bjorn returns to Kattegat to learn that an attack will take place during the next full moon; Ivar must decide if he can place his trust in a former enemy on the battlefield.