Some armchair mushing this week on Frontiers.  Sit back and relax and enjoy a preview of this year’s Iditarod race, courtesy of KTVA’s sports department.
Dave Goldman and John Thompson step in to co-host. 
Here are some of the highlights:  

An overview of the dog doping scandal that dominated the headlines going into this year’s Iditarod.  
Analysis of the behind-the-scenes politics that have plagued the Iditarod this year. Blogger Craig Medred provides institutional memory.
Iditarod veteran DeeDee Jonrowe bids farewell to the race.
It has been a challenging year leading up to the Last Great Race – a dog doping scandal involving four-time champion Dallas Seavey, turmoil over the governing board’s management of the race, growing concern from sponsors and pressure from animal rights groups. But the show must go on.
In this episode, we take a look at the timetable of events, triggered by a drug test at the 2017 finish line in Nome, where some of Seavey’s dogs tested positive for a painkiller called Tramadol. Seavey maintains his innocence and dropped out of this year’s Iditarod in protest, opting to participate in a race in Norway instead.
Our guest is long-time Alaska journalist Craig Medred. He offers his thoughts on what the race can do to get back on track.
Also this week, a look back at the long mushing career of DeeDee Jonrowe. We have covered DeeDee several times on Frontiers. She fought off cancer, a wildfire that destroyed her Willow home and the loss of those closest to her. Despite all of that, she has 16 top ten finishes and has become an Iditarod legend. This, her 36th Iditarod will be her last. Yet she has no plans to slow down. Jonrowe’s long list of projects includes training dogs for search and rescue operations and spending more time advocating for better medical care in rural Alaska.