Broadchurch arms, leg, abs.

Do just one body part (arms, legs, or abs), or all three if you're ambitious.

Phone call
          .....30 second plank
          .....15 backward leg lifts each side
          .....20 bicycles

Crying
          .....15 shoulder presses
          .....20 sumo squats
          .....20 Russian twists

Beach
          .....15 tricep pushups
          .....30 second wall sit
          .....20 oblique/side crunches each side

Friend, family, person of interest, or suspect is interviewed
          .....20 bicep curls
          .....30 calf raises
          .....20 crunches

Someone hides or destroys evidence, or tells a lie of omission
          .....10 push ups
          .....20 jumping jacks
          .....10 straight leg lifts

Someone assures someone else "this didn't have anything to do with Danny"
          .....15 lateral raises
          .....15 forward leg lifts each side
          .....10 reverse crunches