The couple are travelling from Srebrenica to Sarajevo to catch a flight. This is a simple journey on major roads, much of it on motorway. There is no reason for them to be on a remote forest track.
A couple abandon a 4WD on a forest track and set off to find the nearest town, but the woman is concerned about landmines. Tracks tend to connect towns, not bypass them. If the track was mined, the vehicle would have been blown up or weeds would have grown over it. If not, the couple would have no reason to stray from it as the track would take them where they wanted to go.
In the very first scene a character is trying to drive a 4x4 with one back wheel in a hole. The vehicle is moving forwards with considerable force, although not able to climb out. The driver then gives up trying, saying the axle is broken. This makes no sense, since we have just seen effective power being delivered to a wheel that has traction.
Alex has a mobile phone and a signal, but does not use it until half an hour into the film, long after they have abandoned a stranded vehicle.
Given that Alex appears to have chosen a long off-road route to get to the airport, he seems to have no idea how to pack rocks and branches in front of a bogged wheel to drive out of difficulty.