It's so unrealistic, even in a show like this, that crews would even be able to course correct and rendezvous with another ship on the way to Mars within a 72 hour window, especially with the ships spaced far apart. They also wouldn't risk the lives of everyone else to save five cosmonauts because of the very thing that happened at the end of the episode - more lives being lost because of the rescue attempt! This kind of deep space rescue requiring nigh impossible odds appears not only in other episodes of this show, but many other shows and movies. Don't even get me started about the loss of a mission that took years of planning and tens to hundreds of billions of dollars of resources. How many times are they going to use a flying errant cable that kills someone? We've seen this already at the start of season 3.
Review of Happy Valley
