“Dek” is the runt of the “Yautja” clan so his militaristic father has asked his elder brother “Kwei” to get rid of him. Luckily, his brother isn’t so brutal and so with an impossible task on his hands to prove his worth, “Dek” manages to escape to a planet where he seeks to make a trophy from the menacing “Kalisk”. Thing is, this place is riddled with all sorts of flesh-eating monsters and plants so his own survival chances aren’t especially high until he encounters the top half of synthetic “Thia” (Elle Fanning) who is quite hot on keeping him alive and who agrees to work with him to achieve ...