Choose an ally that you can see within range. If the creature is unwilling, the target must succeed on a Wisdom saving throw or be subjected to the effects of this spell. The caster then uses the creature’s reaction to perform one of two maneuvers.

Zig. The target moves up to their movement without provoking opportunity attacks.

Zag. The target moves up to half their movement without provoking opportunity attacks and makes one attack agains a creature within range 

If cast on multiple targets, all creatures must be targeted by the same effect, Zig or Zag

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target on additional ally for each slot level above 3rd. The humanoids must be within 30 feet of each other when you target them.