Max reps pull-ups (18)
rest
Max reps pull-ups (10)

Then:
400m
50 kettlebell (35 at 30lbs, 15 at 35lbs)
50 double-unders
40 kettlebell (32 at 35 lbs, 8 at 40lbs)
40 double-unders
30 kettlebell (40 lbs)
30 double-unders
20 kettlebell (45 lbs)
20 double-unders
10 kettlebell (50 lbs)
10 double-unders
400m