Only the strong

Duration 43:00 TSS 47 IF 0.8

03:00 @ 50% FTP
2x
00:10 @ 160% FTP,
00:50 @ 50% FTP
02:00 @ 65% FTP
01:00 @ 109% FTP
02:00 @ 65% FTP
05:00 @ 90% FTP
03:00 @ 50% FTP
6x
00:10 @ 150% FTP,
01:50 @ 62% FTP
03:00 @ 50% FTP
06:00 @ 83% FTP
04:00 @ 50% FTP

Out of the saddle surges with a short recovery period. This is getting you ready to finish the session with a solid steady-state effort.