Complex sentence: When Claude disappears, Hugo continues to maintain the clocks while seeking out a living by stealing food and supplies, fearing that if the vigilant Station Inspector (Sacha Baron Cohen) were to discover Hugo, he would be turned over to an orphanage.
Split into simpler sentences: When Claude disappears, Hugo continues to maintain the clocks while eking out a living by stealing food and supplies. All the while Hugo lives in fear that if the vigilant Station Inspector, played by (Sacha Baron Cohen), were to discover Hugo, he would be turned over to an orphanage.