In that half-season, star Damien Lewis was largely unable to travel to the U.S., due to the pandemic and the illness and passing of his wife, and Lewis ultimately left the show after that half-season. The series had to abandon its 5th season, midstream, in 2020 due to the COVID pandemic, returning nearly 18 months later for the season’s second half.
The Showtime series Billions dealt with quite a bit of adversity throughout its final seasons.