Team Expansion has developed resources that can be used for personal, small group, or church-wide study. An ideal scenario would be a church using this kit to do a five-week sermon series on missions and the unreached and have groups follow along throughout the week with the small group study.  The kit includes all the video and art files a church would need to do a sermon series, including this sermon bumper: https://vimeo.com/764976679  Check out everything it includes and get the download here: https://TeamExpansion.org/Unreached.