Set #4 is designed by Samantha Taylor of Donalda Club, and consists of performing 30-60 seconds of each exercise, depending on your level of fitness:
1. Mountain Climbers: https://vimeo.com/119363800
2. Warrior 3 Squats: https://vimeo.com/119363915
3. Plank Taps: https://vimeo.com/119363824
4. High Knees at slow or high speed: https://vimeo.com/119363769
5. Triceps Pushups, either on your knees or toes: https://vimeo.com/119363849
6. Bridges: https://vimeo.com/119363718
7. Bionic Jacks: https://vimeo.com/118840424
8. Upper Cuts: https://vimeo.com/119363889
As usual, beginners 1 set; intermediate 2 sets; expert 3-4 sets, with 30-60 seconds break between sets.