*SPOILERS*

Girl on girl fights, sibling rivalry and more hallucinations than you can cure medicine with. This was the finale episode of CBS' summer TV mini-series "Extant." And these were all of the situations that occurred on Earth as well as in outer space.

This is Part 2 of my review of the final two episodes in this hit summer TV series starring Halle Berry. The episode was titled "Ascension." This particular review will focus on four standout performances in this episode. And it will also be told with two perspectives: one on Earth and the other on the Seraphim. The four break out performances were by Berry's Molly Woods, John (Goran Visnjic), Ethan (Pierce Gagnon) and the offspring (Shannon Brown).

The finale opens with Molly suiting up with all of the latest International Space Exploration Agency (ISEA) technology to protect herself against the beings in space. Molly's mission was to get to the Seraphim, rescue Glass (Enver Gjokaj), and blow up the space station before it crashes to Earth. If the Seraphim does indeed crash on Earth -- before Molly does an emergency decommission -- then the spores will cover the Earth and infect everyone.

Everyone was worried about the mission's success, from the new ISEA head, Molly's friend Dr. Sam Barton (Camryn Manheim), to the entire Woods family: John, Ethan and Molly herself. On the Seraphim, Molly teamed up with a freaked out Glass. They first had to restore communications back on the station to stop the beings from controlling it and then set the explosive charges to blow up the space station. Easy right? Wrong!

Girl on girl fighting. Molly desperately tried to locate some equipment to restore communications. When Molly found it, Katie (Tessa Ferrer), or the beings, attempted to stop her. It was a lot of pushing, shoving and moaning. Molly was able to subdue Katie by shoving her away and getting outside of the room. Back off, you alien scum! Molly was able to escape, but she lost one of her protective gloves. Molly therefore became infected and susceptible to alien hallucination and control.

Molly is way stronger than those alien creatures. But Glass became more susceptible to the alien control. The aliens used their strength and influence over Glass to try to subdue Molly. Well it was nothing like "Alien" -- it was more about Molly overcoming her past guilt and realizing that she needed to live in the here and now. In other words, Glass was anesthetized by Molly; she put him in the spaceship under sedation and in stasis. Way to go, Molly!

Hopefully, B.E.N. (Eric Martsolf), the on-board computer, will giver her some help.

Back on Earth, the fighting was also alien. John and his team -- Julie (Grace Gummer) and Charlie (Tyler Hilton) --discovered the bomb inside Ethan, so John turned to Kern (Maury Sterling) for help. Kern explained to them that the bomb was pressure sensitive: any sort of movement or attempt to remove it will cause it to explode. John like a good parent told Ethan the truth about the bomb, and Ethan took the news surprisingly well.

Ethan has been through a lot this season. He has dealt with bullies and mostly grown and exceeded his programming. All of this has prepared him for the ultimate battle: to save humanity.

At the ISEA headquarters, they were tasked with bringing Molly successfully back home, but the building gets controlled by the offspring. Everyone has to evacuate the building before they become manipulated. The new ISEA chief Ryan Jackson (Adam O'Byrne) was left with no choice but to abort the mission. Jackson then went to the Yasumoto Towers to seek help from John and his team. Ethan offered his help by letting his father and Jackson know that he was the only unaffected by the offspring's powers.

Sibling rivalry raises its ugly head. Ethan must re-engage the security protocols to get Molly home. Just like a good kid, Ethan uses a kick-scooter to get through the building and to the ISEA command center. But Ethan encountered the offspring first. What could have been more action instead became a staring contest. But Ethan electronic shut the door using his electronic brain, but the offspring found a way to break the glass door open. Ethan however is in control now; he managed to get into contact with Molly and connected her with John.

Back on the Seraphim, Molly explained to her son and husband that B.E.N. would not allow her to leave because she became infected with the alien spores. Molly apologized to John and Ethan. But Ethan like Molly is determined to bring her back home; Ethan ignores all of the advice from his parents and manages to override B.E.N.'s systems. The risk and the reward is fatal. In order to override B.E.N. Ethan had to raise the temperature in his body by 98 degrees -- this could in fact damage Ethan's systems. Molly gets free and takes off, while the Seraphim burned behind her.

On Earth, Ethan's temperature rose, and he could not stop it. The offspring came to stop the mission, but he was too late. Ethan sacrificed himself to save his parents, and he even helped to save the Earth-bound alien menace. Ethan found his purpose. Ethan yelled to the offspring, "You better get outta here. Run!"

We did not actually see the explosion in the ISEA headquarters. Only Ethan's digital schematics on the computer screens disintegrating. Ethan is dead. (Or is he?)

Five days later, the Woods family is still dealing with the loss of Ethan, but Molly is worried about the offspring too. In an instant, we see Ethan's digital schematics reappear in every digital place, from the Woods home to the Yasumoto Towers.

Molly and John ask, "Ethan where are you?" Ethan replies, "I am everywhere." Ethan is alive again.

Meanwhile, the offspring is left to roam the city. He is broken and alone. The so-called innocent offspring gets picked up by some passersby in a car. The offspring goes with them willingly but was never given a name.