Where does Luke give his account of the same Jerusalem meeting Paul rehearses in Galatians 2?

Les explains that the setting for this meeting was the church at Antioch in Syria, which had become predominantly Gentile, where Paul and Barnabas labored and from which they moved out into the Gentile world of Asia Minor and Greece. Everywhere they went, their congregations were constantly subjected to Judaizers trying to bring them back under the Law, claiming Paul's converts could not be saved unless they kept the Law of Moses, practiced circumcision, and so forth. Finally, after many years, this came to a head, and Paul and Barnabas, by the Lord's direction, were sent up to Jerusalem to confront Peter and the hierarchy there. Les points out that this is what Paul rehearses in Galatians chapter 2, and after pausing in Galatians he goes back to pick up Luke's account of that same meeting in Acts chapter 15, dropping into Galatians verse 6 first, where Paul writes of "these who seemed to be somewhat," implying they were not what they thought they were.