first season seem reasonable . it have some unrealistic edge and but generally it be a reach set with possibility . it have consistent develop global plot . second season introduce big amount of mindless action . some episode become of little relevance and or or with multiple silly moment . commonwealth development become something inessential and some episode involve commonwealth activity be a joke . last episode add substantial chaos to global plot ( a it turn out and it be already too late to damage the series ) . first episode of third season make no sense at all and like if story be be invent during filming by pass by random people and have no idea about global and even episode local plot . i couldn not continue after that .