Description：Keri Russell and Matthew Rhys will return with "The Americans" Season 4 on March 16, focusing on the threat of biological weapons and the unearthing of the Channings' secrets. Producer Joel Field said that television critics suggested to him and producer Joe Weisberg that it was time to consider ending the show given the current plot developments. Field can't say exactly when the show will end, but he hinted that it will end in Season 5 or Season 6. "If you think of it as a three-act play, then we're getting close to the end of the second act. But whether it ends in Season 5 or Season 6, we will seriously explore its new direction and do our best to make the next one. I really can't say when it will end now. I will only make all the decisions that are right for the show and hope that it will end.