Captain America in Star Wars (Book 2): The U.S. Agent Vs Nomad

After the end of the Clone Wars Steve Rogers, Sam Wilson, Bucky Barnes, Bobbi Morse and Yelena Belova are fugitives from the Global Empire. They are forced into a nomadic lifestyle to avoid Darth Vader and his Inquisitors who aren't just Jedi Hunters but superhero vigilante hunters. They find some semblance of a peaceful life with the Free Ryloth Movement led by Revolutionary General Cham Syndulla. As payment for getting refuge from his forces the group reluctantly agrees to a bold plan of Syndulla's and his right hand woman Ishval to assassinate Emperor Palpatine and Darth Vader when they perform their first official visit to Ryloth/Algeria. The visit is a staging ground to perform the assassination. Imperial leader Contessa Valentina Allegra de Fontaine discovers the plot and sends her elite operative John Walker aka U.S. Agent to stop the assassination.