Here is what I understand the good news to be:
The good news is that the one and only God who is holy made us in his image to know him.
But we sinned, trying to run our lives alone without him.
Yet in his great love, God became a man in Jesus and lived a holy life.
And died on the Cross thus fulfilling the law himself and taking on himself the punishment for my sins and the sins of all others who would ever turn and trust in him.
He rose again from the dead showing that God had accepted Christ's sacrifice, and that God's wrath against us had been exhausted.
He now calls on us to repent of our sins and to trust in Christ alone for our forgiveness.
If we do so, we are born again into a new life, an eternal life with God.