The Mass Effect reached the third chapter, here are the 3 intro videos of the saga..
In the year 2148, explorers on Mars discovered the remains of an ancient spacefaring civilization. In the decades that followed, these mysterious artifacts revealed startling new technologies, enabling travel to the furthest stars. The basis for this incredible technology was a force that controlled the very fabric of space and time. They called it the greatest discovery in human history. The civilizations of the galaxy call it… MASS EFFECT.
We’re at war. No one wants to admit it but Humanity’s under attack. One very specific man might be all that stands between Humanity and the greatest threat of our brief existence.
We fight or we die! That’s the plan! – Commander Sheppard.