The Martian back up again

Back to mars

"You want us to what" asked Lewis.
"You heard me" Forge said.
"You want us to go back to mars?" Lewis said.
"What the problem with going back to mars?" Forge asked.
"First off, it's a dessert planet. Secondly, we don't have a space craft to get us there." Lewis said.
"Actually you do" Forge said.
"No, we don't. The Hermes is taking the Ares IV crew to mars." Lewis said.
"You do and it's called Planet jumper." Forge said.
"Well we still will need food and other supplies." Lewis said.
"Well I'm open to suggestions" Forge said.
"Will do" Lewis responded.