Complex sentence: He discovers that Sam has a daughter, Carla (Leighton Meester), born nine months after he left; but it is later revealed that Glen, not Hank, is Carla's father.
Split into simpler sentences: He discovers that Sam has a daughter, Carla (Leighton Meester), born nine months after he left. It is later revealed that Glen, not Hank is Carla's father.