Feeling the pressure to succeed and provide Susan with the life he promised, Jack urges the rocketry team to take a risk and start testing their experiments at full volume. Sensing the Parsons' mounting frustrations, Ernest invites them to one of his group's secret gatherings, promising a way to make all their dreams come true.

The team finalizes their prototype but, in a role reversal, Richard has confidence in the design while Jack doubts it will work. Jack leaves the team to test fire without him as he and Susan accept Ernest and Maggie's invitation to go camping in Joshua Tree. While Susan gets better acquainted with Maggie, Ernest uses a mind-bending elixir to teach Jack about the power of Thelema.