go awry

Verb

 * 1)  To become twisted, or turned to one side.
 * 2)  To depart from the correct course.
 * 3)  Of a situation, to fall apart or unravel; to fall into disorder; to hit the fan.

Usage notes

 * If something is going awry it means that the situation is falling apart or unraveling, has become chaotic and disorderly, and is not approaching the anticipated outcome.