Ben Murillo has acquired some information on the whereabouts of the Soviets. He meets Indiana Jones and tries to convince him to go on another adventure to try to stop the Soviets from resurrecting one of the world's evilest leaders.
Ben Murillo is an agent for the CIA and deals in International Relations. The CIA sends him to find Indiana Jones and tell him that the Soviets are going to resurrect Stalin. He is also assigned to protect and guide Indiana Jones until they get to the Soviet Union safely. When he gets to the Soviet Union, he goes undercover to gain more information on how the Soviets are going to resurrect Joseph Stalin.
Ben meets Indy
Ben Murillo finds Indiana Jones to tell him that the Soviets are trying to resurrect Joseph Stalin. No one knows how he got this information, except for the CIA. Indy declines the mission. But Ben and Mutt convince him into going on another adventure to try and stop the Soviet resurrection.
Trip to Soviet Union
Ben Murillo joins Mutt and Indy in their adventure to the Soviet Union. Although Ben is just there for the guidance, he won't be doing any fighting or action. Since Indiana, Mutt and Ben are American, they are not allowed anywhere close to the Soviet Union, especially after what happened in Indiana Jones and the Kingdom of the Crystal Skull. They decide to go a different route. The three decide to go into the Soviet Union through Finland and reach Leningrad, a.k.a. St. Petersburg that way.On the airplane ride to Finland, Ben describes a brief history about Joseph's resurrection and artifacts. He said "(The Soviets) are using the Roswell Alien's Crystal Skull to help resurrect Stalin". Indy was confused and surprised to find out that the Crystal Skull of Roswell Alien was stolen after he just rescued it.
Once the three reach Leningrad, Indy and Mutt head their separate ways while Ben "enjoys the Russian vacation".
Ben to the Rescue
Indy and Mutt tried to stop the Soviets from leaving Leningrad to resurrect Stalin, but failed. Then, by order of Colonel Dovchenko, they were both sentenced to be shot.
As Indiana and Mutt stand against the wall about to be shot by Russian soldiers, Ben comes to the rescue. Ben uses his strength and wits similar to Indy's to get them out safely. That's when Ben tells Indiana and Mutt that he works for the CIA.
Later on, Ben gets a motorcycle for Indy and Mutt to hurry up and stop the Soviets from getting to their resurrecting spot.