THE FUSE

Intrepid outdoorswoman Sasha (Charlize Theron) has all the physical tools required to weather the Australian Outback, but if she’d spent a little more time indoors — at the movies, specifically — she might have exercised a little more caution in venturing out there. All the threats so vividly established in films ranging from “Wolf Creek” to “The Royal Hotel” are further flagged in Baltasar Kormákur‘s punchily effective survival thriller “Apex,” and with due respect to the venomous snakes and rough-and-tumble rapids that feature along the way, once again they mostly assume male human form.