“I no longer know who I am.” History has released a teaser trailer for new episodes of Vikings.

Set during the Middle Ages, the historical drama stars Travis Fimmel, Gabriel Byrne, and Katheryn Winnick. The series has already been renewed for a fifth season.

The second half of season four premieres this fall.

Take a look at the teaser below:

What do you think? Do you watch Vikings? What do you hope happens in the second half of season four?