Most movies have a couple cameras running at the same time in different locations doing different shoots, but at the end of the day, we end up with a film that connects all the separately filmed pieces and make them all feel like one cohesive unit. Not so much in the case of Escape Plan 2: Hades, in which 50 Cent and Stallone are filmed from the comfort of their studio offices and a few unknown actors do their time in front of a relatively not horrible green screen prison. The entire cast shares the same screen for about 10 minutes, and I think Dave Bautista showed up at one point, but was so completely forgettable but I hesitate to even mention him.
This is unfortunately skippable and forgettable.