Complex sentence: Moon was suppose to jumped off a window from a second story building to evade an explosion but due to bad timing by the pyrotechnicians, she was engulfed in flames before she jumped down, resulting in severe burns to her hands and face.
Split into simpler sentences: Moon was supposed to jump off a window from a second story building to evade an explosion. Due to bad timing by the pyrotechnicians, she was engulfed in flames before she jumped down, resulting in severe burns to her hands and face.