The second part, Nothing, explores science at the very limits of human perception, where we now understand the deepest mysteries of the universe lie. Professor Jim Al-Khalili sets out to answer one very simple question - what is nothing? His journey ends with perhaps the most profound insight about reality that humanity has ever made. Everything came from nothing. The quantum world of the super small shaped the vast universe we inhabit today, and Jim can prove it.

Zachary Quinto charts a journey to determine whether time travel is possible. He meets a man who claims to have traveled back in time due to a secret government program and a group of people living in Liverpool known as 'time slippers'.
Zachary makes a visit to the CERN headquarters in Geneva, where he attempts to understand the origins of the universe and the dimension of time. Equipped with this new knowledge, Zachary tests his own perception of time with an elaborate skydiving experiment to see if he can slow down time itself.

We inhabit a cosmos of undiscovered dimensions and paradoxical realities. We live on one level of perception, but there are others. Every once in a while, a searcher happens upon the doorway to one of these other levels. One of them discovered a paradox about reality that proved to be so profound, we have yet to understand how it could be possible. The universe, or perhaps we should say, universes have never been the same.
In the counterintuitive realm of quantum mechanics, light can be two contradictory things, and somehow - no one knows how - an unseen observer can alter the nature of reality. The man who stumbled on this hole in reality and the still- unfolding technological revolution that it made possible.

As exposed in the film, these women took the world by storm, becoming the iconic faces of '1990s culture until shifting perceptions and a controversial remark shook things up. The third episode delves into the rise of the supermodels like Naomi Campbell, Cindy Crawford, Linda Evangelista and Christy Turlington and their impact on the fashion industry. It also explores the commercialization of fashion, the transition of models into acting, and the globalization of the fashion business. However, the episode takes a darker turn with the tragic assassination of fashion designer Gianni Versace, signaling a shift in the industry's dynamics.

This series delves into the intricacies of dating and relationships among individuals on the autism spectrum, showcasing their unique challenges and triumphs in finding love and intimacy. Through a series of heartfelt encounters and conversations, it presents a candid look at the joys, uncertainties, and profound moments of connection that define the dating experience for those within this community. The documentary navigates through various dates, exploring themes of communication, sexual identity, and the search for companionship, highlighting the diverse ways individuals on the spectrum express and experience love. By giving voice to their stories, this film not only sheds light on the specific needs and perspectives of autistic individuals but also celebrates the universal human desire for connection, challenging societal perceptions and fostering a deeper understanding of autism in the context of romantic relationships.
In this episode, Dani wonders how to approach a sensitive subject with Adan. A connection blossoms during Journey's second date. Connor and Emily find a lot in common.