This video details Day 23 of Nick Bardsley's APEX dumbbell bodybuilding program, focusing on an upper body pull workout. The workout includes pull-ups (or dumbbell pullovers as an alternative), dumbbell rows, straight-arm kickbacks, rear delt rows, seated dumbbell reverse flies, scapular rows, and dumbbell curls. The video guides viewers through each exercise, providing rep ranges, rest times, and form tips.