What should a session include?
One movement from each pattern: a squat, a hinge, a push, a pull and a carry. Three sets each, at a weight that leaves two or three reps in reserve.
Where do I get the actual sessions?
The Power 30 is free and lays out every day, including the baseline test.
What about cardio?
Walking counts and covers most men. Add hard cardio once the lifting habit holds.