The seed co. claims this is from Alaska Thunder Fuck. The site mentions no information on the genetic line for this strain.
There is a legendary strain called Matanuska Thunder (Tundra) Fuck. This strain was grown in the land of the midnight sun (Alaska's Matanuska Valley). This strain not found in many US dispensaries anymore.
There are lots of seed vendors out there and I usually buy directly from breeders that come to have grower's confidence and trust. We have a seed company thread here where we can report good things or bad things about a seed vendor. The funny names are at the bottom of the list of important features.