In the far future, Space travel has became a reality, and three different species dominate & control a nearly never-ending expansion in different galaxies & it's planets: Humans, Mages, and Angels. Though enemies in the beginning, and at war with one another, but through time, have dropped their flags and became the first galactic & unified nation: Equestria. It didn't stop there, as with genetic experiments held by all three species, created a super powerful 4th species, combining all their features into one, creating only two super slow aging beings dubbed "Immortals". They're names are Celestia and Luna: near perfect twins that brought the three other species even closer, became their leaders almost instantly, brought in great prosperity to the galaxy and, from time to time again, acted as their guardians against other super powerful beings that want to rule the galaxy, even from each other, Causing Luna to be banished onto a moon for 1000 years. From what was heard, only Celestia knows how to create even more Immortals, but refuses to create more, as they she wants a unified galaxy and not have multiple flags battling each other for domination. The newest Immortal was an angel named Mio Amore Cadenza, or "Cadence" for short.
Her Student, a mage named "Twilight Sparkle", went through many adventures, made close friends, and is now the newest Immortal. Since then, things have changed for better: Her friends are all achieving their goals, she's setting up new projects to help her planet grow, and her adopted younger brother, Spike, is in the Canterlot army and, after two years, just became commander of Division M6 (Royalty protection), excelling his peers!!! All seemed to be perfect, but something tragic happened. Last Night, after Spike earned his promotion to commander, someone, an unknown figure, was able to bypass security, Princess Luna, and assassinated Celesita in her sleep with venom taken from a Basilisk, the galaxy's largest and most venomous snake in the world. Upon hearing the news, Princess Luna, who was chosen to take over the head throne, declines the offer and instead, with the help of Cadence, make Twilight Sparkle the Head figure for the Throne.
Spike stays with her stepsister, hoping to make her feel better as she prepares for a speech, informing the galaxy of the news and what she, as the new Head Princess will do on the throne. All seems to go well, until the same assassin shows up with an army their own, with their own commanders, and goals, kidnapping Twilight & holding her hostage inside a spaceship that is beyond Equestria's technology. Luna, Cadence, and even his stepbrother, Shining Armor, must stay behind to keep things in order. Now Spike, the first and youngest Draco, (an alien species with Dragon-Like qualities) must find a crew to control the new prototype of a powerful ship (dubbed "The Celestia, in memory of the princess for it's power and elegance), find his kidnapped stepsister from the assassin, find out who they are & what their plan is, and, hopefully, save Equestria.

Note: This whole story is based off the April Fool's promo under the same name. This is heavily influenced by the Mass Effect games, as Equestria is now a unified nation across different galaxies & it's planets, and everyone will now be a different, bipedal alien species that are like humans in almost every way, given with a few exceptions that make them stand out (EX: Earth Ponies are Humans, Unicorns are Mages, Pegasi are Angels, Alicorns are Immortals, and Dragons are Dracos). Information about the different locations (which, for the most part, are now different planets), Species, and characters will be posted in between chapters as a way to give off more lore about the world they live in.