開始快要結束的時候，Mal射殺了Fischer，在夢的第三層殺死了他（或至少致命地傷了他）。 Dom和Ariadne下降到找到他並將他帶回的位置。
這實際上如何工作？
當他們在那找到他，而Ariadne將Fischer帶回到夢境中時，他在夢境的第3層似乎突然he癒了。在他與垂死的父親在一起的場景中，他似乎沒有遭受任何身體上的傷害。他不應該在胸口留下大的傷口嗎？而且，如果這項技術可以在夢的給定層次內有效地使死者復活（或者治愈死傷者），那麼他們為什麼不早於在齋藤先生身上使用它？
菲舍爾被射中夢中的第三層，進入了邊緣。
在邊緣地區，您實際上是在自己的頭腦中，您沒有遵循他人的規則。而且，您是如此“沉迷”（潛意識深處）以至於忘記了現實。這意味著，您沒有其他任何联系。你很麻木（就像昏迷一樣）。如果您留意邊緣狀態，您會發現在倒塌的建築物（第3層）或在水中（第1層）似乎並不影響Cobb。
也許這就是Fischer很好的原因。齋藤也是這樣。當Fischer獲救後，他從邊緣狀態迅速升至夢想級別1（由於腳步同步），而且正如我們所記得的，他在那裡很好。因此，您可能會說，在復活時，他“跳過”了兩層，然後回到了他還不錯的地方。
那麼Saito怎麼了？好吧，他和科布陷入了困境，錯過了那些同步的踢球。其他人則被踢醒，將2級和3級摧毀。這意味著我們現在只有1級和邊緣狀態。因此，有兩種可能性：
Saito從邊緣狀態直接喚醒進入現實，因為它們在邊緣狀態中停留的時間更長。他不會受到心理影響，因為Cobb在那兒提醒他現實，並使他意識到自己的真實身份（這是危險：不知道什麼是真實的了。）
現在，您還問為什麼他們從一開始就不讓Saito陷入困境。好吧，這不是一個好計劃，因為去那裡存在很大的風險（您可能會忘記自己是誰，身在何處），所以追隨他並不是一個好主意，除非他們別無選擇（發生在第三次）級別）。
不幸的是，我不能像《盜夢空間》中的其他問題一樣積極地回答這個問題。
這似乎是情節中的一個空白。小組中經驗最少的Ariadne建議跟隨Fischer進入Limbo，以營救/取回Fischer。她和科布這樣做後，Ariadne和Fischer都從倒塌的建築物中掉下來，回到了第3個夢境層，這是掉落/垂死機制在夢境層上的結合。由於如果Ariadne錯了，她可能會在Limbo呆了好幾年-她似乎很自信並且不懼怕嘗試這種方法。對他來說也一樣-跟隨他到那裡，踢他或殺死他，使他魔術般地恢復到Dream Level 1。
我只能推測Ariadne和Cobb拼命並且願意嘗試任何東西。這讓Ariadne感到驚訝，因為她在這一點上幾乎沒有放棄，但Cobb並不感到驚訝。這樣看來，儘管它們在現實世界中死於沉重而無法在夢中醒來時醒來，但即使在凌波鎮，鎮靜劑也不會阻止其向上移動夢境的死/踢機制。就他們而言，這可能是一場賭博。
這可能與齋藤第一層受傷有關。也許進入和退出邊緣狀態的效果取決於該人所處的夢境。
我只是在這裡推測，但我猜想Fischer是“復興的”，因為他重新進入夢想。 Limbo似乎不是一個層，而是人們可以通過幾種方式進入的整體“區域”：在夢中死亡，經歷足夠的夢層等，因此他很可能回到了第三層。薩皮特先生死於夢limb以求的夢境中。
他們可能幫不上齊藤先生，因為他正在另一夢境中死去。除了身體對第一層射擊的反應之外，他並不一定會在隨後的夢境層受到身體的影響，因此他們無法真正治愈“現實”（第一夢境層）中發生的事情
在做夢。我們對此了解不多，因此在Movie Land中沒有很多規定。
第3層是Eames從第2層開始的夢想，他可以夢想自己想要的東西。如果做夢的人可以建造建築物，並違抗物理學，那為什麼不還可以復活其中一個做夢的人呢？他需要使用除顫器可能表明他不是一個全能的和有意識的夢想家，但我認為這比拍拍他的手指使菲舍爾復活的電影更好。
從1級受傷的情況僅表明優素福有更多的夢境經驗可以得到。
Reference : Inception Explained
To talk of what happened, Mal shoots Fischer.
Mal is a Cobb's projection.
Cobb's mind is very affected by her death, he holds himself responsible for it. When his mind projects Mal, he projects her in a way that is out to ruin it for Cobb, that is his out-of-control guilt doing that.
Cobb, therefore, projects a Mal that attempts to kill Fischer. Her gun and the bullet that hits Fischer is also projected by Cobb. All the other people protecting the fortress is Fischer's projection.
Fischer experiences being shot in the 3rd level of the dream. The mind tends to believe what it thinks it sees and thinks it feels. Fischer starts to die. Once he dies he will wash up on the shores of Limbo. But that hasn't happened yet. Cobb and Ariadne think there is still one shot to get Fischer back. The way to do it by going down in to Cobb's mind at this point because, after all, Fischer is dying because of Cobb's mind. Fischer's dying mind can be reached using Cobb's mind.
They hook up the dying body of Fischer and Ariadne to Cobb's mind and go one level further down. Now, they do reach limbo, but this is because only 3 levels of dreams were architected. Neither did Cobb nor Ariadne die and reach Limbo. This is why they know where they are and what they are here to do. Also because they are in Cobb's mind, they know where they need to go because Cobb knows where Mal will be. Since the reason for Fischer's dying is Mal, if they find Mal, they will find Fischer and they do.
Now, they are merely in one further level of dream state below. To wake up, they need a kick in this level and one from above. Eames, from the level above, uses the defibrillator on Fischer and Ariadne pushes Fischer off the building giving him the kick in the current level (improvises). The synchronized kick brings Fischer one level up.
Fischer saw Mal shooting him and his mind accepted being shot. When he gets kicked back up, he doesn't remember the event that happened prior. Why? may be the shock of it all, waking up from a bad dream and just brushing it aside. They are all dreams at multiple levels after all. Fischer will suffer physical effects of being shot only if his mind makes that happen. In this case, his mind heads towards his dying father and focuses on that.
Saito, on the other hand, is shot by Fischer's militarized mind. Even if they went down into Fischer's mind, they would have no idea where to look for Saito because Saito was shot to protect his mind from getting attacked, Fischer has no obsession with anyone particular from his past. Besides, Fischer is being kidnapped, they would have to convince him to be the dreamer. Going down into Fischer's mind would also ruin the plan as they need to take Fischer through other dreamers deeper and deeper till the 3rd level and incept on his unsuspecting mind. The only thing they can do is hope to complete inception before Saito dies by descending further as the time dilation will give Saito more time to live. However, thanks to Mal being projected, they loose more time and Saito eventually dies and lands up on the shores of Limbo.