in. this is where isis ends. the commander tells his men. moments later, panic breaks out. isis has launched a counter attack. the sdf fire back. we traveled down to the front line as they approach the next village. our escort insist on taking an armored vehicle. even liberated territory is far from secure. these roads are still dangerous. especially early in the morning. because there are isis sleeper snail ins the area. they come out over night and plant roadside bombs. reporter: we stop at the house that they took from isis days earlier. fired off in militant positions. command commander takes us onto the rooft to show us the front