ALL SUNDAY SCHOOL CLASSES are studying The Gospel Project.
The Bible is not a collection of stories. It is one story of God's plan to rescue His people from sin and death. It is the story of redemption, the gospel message of Jesus Christ. And it's our story, too.
The Gospel Project Details:

Chronological study plan - Genesis thru Revelation
Christ-centered study - All scripture gives testimony to Jesus
Age alignment - All ages learn same lessons
Missional focus to respond to God
99 Essential doctrines of Christian faith identified
3 year study plan
18 months in Old Testament
18 months in New Testament