Complex sentence: The White Star journeys six years into the past, and destroys a flight of Shadow fighters carrying a fusion bomb meant to destroy Babylon 4, but a shockwave from the explosion reaches the White Star and damages Sheridan's time stabilizer.
Split into simpler sentences: The White Star journeys six years into the past, and destroys a flight of Shadow fighters carrying a fusion bomb meant to destroy Babylon 4. However, a shockwave from the explosion reaches the White Star and damages Sheridan's time stabilizer.