The reapers have returned from dark space. With Earth under attack and the mass relays in a state of chaos from refugees and the councils fleet engaging reaper forces the galaxy is a mess. The outcome is unknown, the warfare is devastating. The galaxy will never be the same.
Before Cerberus arrived, the system was rich and full of trade with joint council fleets in the system. But in one savage strike, the Cerberus fleets swooped in and claimed most of the system with such force that has been rarely seen. Down to the last planet in the system, what remained in the system prepared for a last stand. When the two fleets were cut down to nearly the same strength thanks to orbital stations, the four remaining Alliance Dreadnoughts and seven cruisers decided to charge the Cerberus line. As Cerberus wasn't expecting this, the battle for the last planet quickly turned and what was left of the Cerberus task force was destroyed as the Alliance fleet charged through their lines. Now all that can be done now is to hopefully replace what ships were lost and prepare for the next attack.
That looks amazing! Incredible effects.